Read the Edited Video Transcript for ‘Inside the Nikon LV150 Metallurgical Microscope’

Hey, this is Chad with Munday Scientific and Microscope Marketplace. Today we’re going to talk about the Nikon LV150 microscope.

The LV150 is a materials or metallurgical microscope, which is a little different from the types of microscopes we usually cover. Because of that, we wanted to take some time to go over its features and show how it works.

This Nikon LV150 is an excellent microscope designed for brightfield and darkfield reflected-light applications, commonly used in materials science, metallurgy, and industrial inspection.

Tools Needed: Allen Wrenches

For this microscope, we’re using a set of Wera Allen wrenches, which are a staple in most microscope toolkits.

Unlike many Olympus microscopes that use a 3 mm Allen wrench, most Nikon microscopes—including the LV150—primarily use a 2 mm Allen wrench.

There is even a built-in storage slot on the back of the microscope to hold the Allen wrench so it’s always available.

Removing the Viewing Head

To remove the microscope head:

1. Insert the 2 mm Allen wrench into the access hole on the back.
2. Loosen the set screw.
3. Hold the head securely while lifting it off the microscope.

Once loosened, the trinocular head lifts straight off.

This head provides a true 100/100 light split, meaning:

• 100% of the light goes to the eyepieces
• 100% of the light goes to the camera port

This allows simultaneous viewing through the eyepieces and camera without sacrificing brightness.

Camera Adapter

The microscope includes a Nikon LVTV camera adapter.

Inside the adapter is a removable insert that determines the camera configuration. In this case, the insert is labeled 7, which is typically used for 2/3″ camera sensors.

The insert can be removed and swapped depending on the camera system being used.

Once the insert is installed, the camera adapter can be locked into the trinocular port.

Eyepieces and Diopter Adjustment

The microscope includes two Nikon CFI eyepieces, each with:

• 10× magnification
• 22 mm field of view
• Diopter adjustment

The small notch mark on the eyepiece indicates the zero position, which is the recommended starting point.

When both eyepieces are aligned at zero, they provide a neutral baseline for users with normal vision. From there, each user can rotate the eyepieces slightly to match their individual eyesight.

Nikon eyepieces include alignment notches that click into place, allowing easy adjustment with one hand.

Analyzer and Polarizer

This microscope includes both an analyzer and a polarizer, which are useful for materials analysis.

The analyzer slides into this slot and has two click-stop positions:

• Inserted
• Removed

The polarizer also slides into position and can be rotated, allowing the user to adjust polarization angles for improved contrast.

If a DIC (Differential Interference Contrast) system is added later, these components would be used together to properly align and cross the polarizing elements.

Even without DIC, the rotatable polarizer and analyzer combination can produce excellent contrast for materials inspection.

Illumination and Filters

At the rear of the microscope is the lamp housing, which uses a 12V 50W halogen bulb.

The illumination system also includes filter controls, allowing users to insert different filters into the optical path.

These include:

• Neutral density filters to reduce brightness
• Daylight blue filters to adjust color temperature

By switching these filters in and out, users can fine-tune contrast, brightness, and color balance depending on their application.

Mechanical Stage

The microscope features a large two-axis mechanical stage designed for precise specimen movement.

The stage has recently been serviced and lubricated, so movement is extremely smooth.

Objectives and Nosepiece

Before removing the objectives or nosepiece, always lower the stage to prevent accidental contact with the lenses.

The nosepiece can be removed by:

1. Inserting the 2 mm Allen wrench into the access hole.
2. Holding the nosepiece while loosening the screw.
3. Sliding the nosepiece downward to remove it.

This is a brightfield/darkfield nosepiece equipped with Nikon TU Plan Fluor Epi objectives.

The objective set includes:

• 5×
• 10×
• 20×
• 50×

Each objective is marked with a “D”, indicating it supports both brightfield and darkfield illumination.

This is very important—darkfield imaging requires darkfield-compatible objectives. Without them, the darkfield system will not function correctly.

Brightfield and Darkfield Illumination

The LV150 uses a reflected-light illumination system, meaning light travels from the lamp housing through the microscope and is reflected off the specimen.

This is ideal for opaque materials such as metals and industrial samples.

The illumination selector allows you to switch between:

• Brightfield mode (fully inserted)
• Darkfield mode (fully extended)

Focus Controls and Torque Adjustment

The microscope includes both coarse and fine focus controls.

There is also a torque adjustment knob, which allows you to control the resistance of the focus mechanism.

If the torque is set too low, the stage may begin to drift downward on its own, especially at higher magnifications like 20× or 50×.

Tightening the torque knob prevents this drift and stabilizes the focus.

Removing the Illuminator Assembly

When shipping the microscope, we remove both:

• The trinocular head
• The illumination column

The illumination column is secured by three bolts located at the top of the microscope frame.

Removing these bolts allows the entire illuminator assembly to lift off for safer transport.

Power and Light Controls

The main power switch is located at the back of the microscope.

Once the microscope is powered on, the rheostat knob controls the brightness of the illumination.

The power indicator light changes color:

• Orange when the microscope is off
• Green when the microscope is on

Changing the Bulb

Before replacing the bulb, always turn off and unplug the microscope.

To change the bulb:

1. Remove the lamp housing cover using the Allen wrench.
2. Open the lamp housing.
3. Locate the 12V 50W halogen bulb.
4. Press down the two retaining clips and lift the bulb out.

When installing a new bulb:

• Do not touch the glass with your fingers
• Use a tissue, wrapper, or lint-free wipe

Insert the bulb, release the retaining clips, and reassemble the lamp housing.

Final Thoughts

The Nikon LV150 is an outstanding materials microscope. It’s extremely versatile, easy to use, and capable of high-quality brightfield and darkfield imaging for industrial and materials science applications.

Contact Information

If you have questions about this microscope or any other microscopes we offer, feel free to contact us.

Phone: 919-775-5596
Website: microscopemarketplace.com
Email: info@mundaymicroscope.com

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Read the Edited Video Transcript for ‘Geologist’s Guide to Olympus BX50 Polarizing Microscope’

Hey, this is Chad with Munday Scientific and Microscope Marketplace. Today we’re going to take a look at an Olympus BX50 polarizing microscope.

We recently sold this microscope, and it’s being shipped out to New Mexico. In this video, we’ll go over how to disassemble and reassemble the microscope, and we’ll also highlight several features that will help the end user get the most out of it.

As usual, Michael is going to join in and help demonstrate some of the steps.

The Essential Tool: 3 mm Allen Wrench

On Olympus BX microscopes, one of the most important tools you’ll use is a 3 mm Allen wrench. This tool works for nearly every adjustment and removal point on the microscope, with only one exception that we’ll cover later.

It’s extremely handy and used for tasks like:

• Removing the camera adapter
• Detaching the viewing head
• Removing the nosepiece
• Taking off accessories like the stage holder

Trinocular Viewing Head and Light Path Control

This microscope is equipped with a trinocular viewing head, which allows you to attach a camera for imaging.

There is a light path selector rod located on the head:

• All the way in: 100% of the light goes to the eyepieces
• Middle position: Light is split between the eyepieces and the camera
• All the way out: 100% of the light goes to the camera

This allows users to either observe through the eyepieces, capture images through the camera, or do both simultaneously.

Camera Adapter and Focus Adjustment

The microscope includes an Optium camera adapter.

To remove the camera adapter, loosen the 3 mm Allen screw and lift it off the trinocular port.

This adapter is a 0.5× reduction lens, which is important because the image seen through the eyepieces may not perfectly match what appears on the camera.

To correct this:

1. Focus the specimen through the eyepieces first.
2. With the camera attached, use the adjustment wheel on the adapter.
3. Rotate the wheel while watching the camera display to bring the image into focus.

This ensures the camera image matches the eyepiece focus.

Eyepieces and Crosshair Adjustment

The microscope includes two eyepieces:

• One fixed eyepiece
• One focusable eyepiece

There is also a diopter adjustment tube that allows the fixed eyepiece to be focused.

For initial setup, align the zero marking on the eyepiece with the white reference dot. This provides a good starting point for users with normal vision.

Because this is a polarizing microscope, one eyepiece contains a crosshair reticle. The focusable eyepiece allows users to bring the crosshair into sharp focus by rotating it.

The reticle assembly includes a small positioning pin and slot, which allows the reticle to be rotated easily with one hand.

Bertrand Lens and Analyzer

This microscope includes a Bertrand lens, which is used for observing interference patterns in polarizing microscopy.

The Bertrand lens assembly includes:

• A rotating analyzer (180° rotation)
• A pull-in/pull-out analyzer control
• A slot for wave plates

For this microscope, the customer requested a TP530 nm wave plate, which is already installed.

Once installed and centered, the user simply needs to center the stage at the 10× objective, and the microscope will be ready to use.

Centerable Nosepiece and Objectives

This microscope uses a centerable nosepiece, which allows each objective to be individually aligned for polarizing work.

Always lower the stage before removing the nosepiece.

The objective configuration for this microscope includes:

• 4× objective
• 10× objective
• 20× objective
• 40× objective

Each objective can be centered using adjustment screws, but we have already pre-centered the objectives to make setup easier for the customer.

Condenser and Polarizer

Next, we move to the condenser assembly.

To remove the condenser:

1. Raise the stage.
2. Lower the condenser using the two condenser adjustment knobs.
3. Loosen the knurled thumb screw and remove the condenser.

This microscope uses a U-PC2 flip-top condenser.

Key features include:

• Integrated polarizer
• Aperture diaphragm for contrast control
• Flip-top lens element for low magnification objectives

When using most objectives, the top lens element should remain in place for optimal image quality. If a 2× objectiveis used, the top lens can be flipped out.

When reinstalling the condenser, align the guide pin with the slot in the microscope frame. Insert the condenser slightly at an angle and rotate it until it slides fully into place.

Illumination Filters and Field Diaphragm

The microscope also includes several built-in illumination controls.

These include:

• Field diaphragm
• Daylight blue filter (LBD)
• Neutral density filters (ND6 and ND25)

The daylight blue filter helps simulate natural daylight color temperature, while neutral density filters reduce light intensity without affecting color balance.

These filters can be flipped in or out depending on imaging needs.

Slide Holder and Stage Adjustment

The microscope includes a U-FMP slide holder, which allows the stage to move the specimen in both directions.

If you prefer not to use the slide holder, it can be removed using the 3 mm Allen screw located in the center.

The stage can also be re-centered using the two adjustment screws located on the stage.

The stage also includes a click-stop rotation mechanism, which allows users to lock the stage into defined rotational positions.

Reassembling the Microscope

Once the components have been inspected or transported, the microscope can be reassembled:

1. Lower the stage.
2. Reinstall the nosepiece.
3. Reattach the slide holder.
4. Mount the trinocular head and tighten it with the 3 mm Allen wrench.

If necessary, the objectives can be centered using a 1.5 mm Allen wrench.

Power Controls and Illumination Adjustment

The microscope includes a standard power switch and rheostat brightness control.

There is also a preset brightness button. If this button is activated, the brightness knob will no longer change the light intensity.

If that happens, you can adjust the preset level using a flathead screwdriver inserted into the adjustment port.

Changing the Bulb

Always unplug the microscope before replacing the bulb.

To change the bulb:

1. Use the 3 mm Allen wrench to loosen the lamp housing screw.
2. Remove the lamp housing.
3. Loosen the screw on top of the housing.
4. Slide the lamp housing open.

The microscope uses a 12V 100W halogen bulb.

To remove the bulb:

• Press down the two metal clips
• Lift the bulb out

When installing the new bulb:

• Do not touch the glass with your fingers
• Use the protective wrapper or a lint-free tissue
• Press the bulb into place and release the clips

Reassemble the lamp housing and reinstall it onto the microscope.

Application

This particular microscope will primarily be used for geology applications, where polarizing microscopes are commonly used to analyze mineral samples.

Contact Information

If you have any questions about this microscope or any other microscopes available through Microscope Marketplace and Munday Scientific, feel free to contact us.

Phone: 919-775-5596
Email: info@mundaymicroscope.com

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Read the Edited Video Transcript for ‘Nikon Ts2 Tissue Culture Microscope — Pro Tips’

Hey, this is Chad with Munday Scientific and Microscope Marketplace. Today we’re going to talk about the Nikon TS2 tissue culture microscope. This is an excellent microscope commonly used for tissue culture applications.

Michael is going to help us walk through the scope and highlight some important features, as well as answer some of the most common questions we receive from customers.

Understanding the Power Switch

One of the most common questions we receive about the Nikon TS2 involves the power switch.

If you sit down and press the power button on the front of the microscope, you might notice that no light appears. Many people assume something is wrong with the microscope at this point.

However, the Nikon TS2 actually has two power controls. The main power switch is located on the back of the microscope. This switch must be turned on first. When it is on, the power indicator light will illuminate, confirming that the microscope is receiving power.

Once the rear switch is on, pressing the button on the front of the microscope will activate the illumination.

Many users overlook the rear power switch, especially in shared lab environments. If it’s turned off, the microscope will appear unresponsive even though nothing is actually wrong.

Brightness Control (Rheostat)

Another common issue involves the brightness control, also known as the rheostat.

This knob adjusts the intensity of the LED light source. If the control is turned all the way down, no light will pass through the microscope.

If you’re not seeing illumination, make sure that:

• The rear power switch is turned on
• The front power button is activated
• The brightness control is turned up

Often, simply adjusting the brightness control resolves the issue.

LED Light Source and Condenser

The Nikon TS2 uses an LED light source, which provides bright, stable illumination and requires very little maintenance.

Below the stage is the condenser, which directs light toward the specimen. This condenser also includes a phase sliderused for phase contrast microscopy.

Phase Contrast Slider

The phase slider includes several preset positions:

• A phase ring for 4× objectives
• A phase ring for 10×, 20×, and 40× objectives
• An open position for brightfield imaging

The open slot can also be used to insert optical filters.

For example:

• A green filter is commonly used for phase contrast and tissue culture work
• A blue filter may be used with halogen illumination systems

Because this microscope uses LED illumination, a blue filter is generally unnecessary, although some users still prefer it.

When you move the phase slider into place, it clicks into position, ensuring that the phase rings are properly aligned.

Condenser Diaphragm

The condenser also includes an aperture diaphragm, which controls the amount of light entering the optical system.

If you close the diaphragm completely, very little light will pass through the microscope. Opening it allows more light to reach the specimen.

Adjusting the diaphragm can help improve contrast and image quality.

If you’re not seeing enough light through the microscope, check to make sure the diaphragm is not closed too much.

Removing and Cleaning the Condenser

The condenser can be removed using the thumb screw located on the side.

When removed, you can see how the diaphragm opens and closes, creating an adjustable circular opening.

If dust or debris enters this area, you can remove the condenser and use compressed air to clean it. Avoid inserting objects like Q-tips into the optical components, as this can cause damage or make contamination worse.

To reinstall the condenser, align the mounting knobs with the dovetail mount and lock it back into place.

Eyepieces

The Nikon TS2 includes two 10× eyepieces with a 22 mm field of view.

Both eyepieces feature diopter adjustments, allowing each user to fine-tune focus for their own eyesight.

To start, align the zero mark on each eyepiece with the reference line. This setting corresponds to 20/20 vision. From there, you can adjust each eyepiece slightly to match your visual preference.

Stage Insert

The microscope includes a stage insert, which sits inside the stage opening.

Different types of inserts are available depending on the application. The one shown here is a plastic insert, which works well for many tissue culture tasks.

This insert includes a small retaining screw that should be kept in the down position. It also clicks into place, ensuring proper alignment.

Be careful not to focus the microscope too high when rotating objectives, as the objective lens could contact the stage insert.

Mechanical Stage

This microscope features a right-handed coaxial mechanical stage, allowing smooth movement of the specimen.

Various specimen holders or plate holders can be attached depending on your workflow.

The mechanical stage can also be removed if needed. It is secured underneath the stage with two 2.5 mm Allen screws—one on the side and one toward the back.

For basic tissue culture work, where you’re simply placing a well plate on the stage, the mechanical stage may not always be necessary. However, it provides additional control for precise specimen positioning.

Focus Controls and Tension Adjustment

The Nikon TS2 includes both coarse and fine focus controls for precise focusing.

There is also a focus tension adjustment knob, located as the inner ring around the focus control.

This adjustment increases or decreases the resistance of the focus movement. If the stage drifts downward over time, tightening the tension knob will stabilize it.

Optional Camera Port

Another useful feature is the option to add a camera port.

Nikon offers an optional camera adapter that mounts here on the microscope. To install it, you remove the existing screws, attach the camera port, and secure it in place.

This allows users to capture images or record video of their cell cultures, which is a common requirement in many laboratories.

Adding a camera port will increase the price slightly, but it is a valuable upgrade for documentation and research.

Pricing and Availability

The Nikon TS2 is a durable, reliable, and affordable tissue culture microscope. We sell many of these because they are well-suited for laboratory environments.

Depending on the configuration and options, the typical price is around $3,500, although it may vary slightly.

Where to Buy

If you’re interested in purchasing this microscope or other tissue culture microscopes, you can visit microscopemarketplace.com.

Contact Information

If you have any questions, feel free to contact us.

Phone: 919-775-5596
Email: info@mundaymicroscope.com

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Read the Edited Video Transcript for ‘How to Set Up the Unitron Z645 Stereo – Easy Guide’

Hey, this is Chad with Munday Scientific. Today we’re going to demonstrate the setup of a Unatron Z645 stereo microscope with a standard plain stand and LED ring light.

We recently received a call from a customer who purchased this microscope and was a little concerned about how difficult it might be to set up. In this video, we’ll show you how easy the setup process really is, and then we’ll talk a bit about the features of this stereoscope.

Unboxing the Ring Light

The first component we’ll look at is the LED ring light.

Inside the box, you’ll find the ring light itself. We won’t remove everything from the packaging, but we’ll take out the main portion so you can see it.

The ring light mounts around the objective lens of the stereoscope. To install it, you simply loosen the small mounting screws, slide it into place, and then tighten the screws to secure it.

One nice feature of these ring lights is that they are generic LED units, which means they work with many different stereoscopes. They are also very easy to install and operate.

We’ll set that aside for now and return to it shortly.

Unboxing the Microscope

Next, we’ll open the box containing the microscope.

The microscope is securely packed in foam, which protects it during shipping. Even though the packaging is well protected, it’s always a good idea to open boxes carefully.

Inside the box you’ll find:

• The microscope head
• A user manual
• A dust cover
• The eyepieces

The dust cover is particularly important. Keeping the microscope covered when it’s not in use helps protect it from dust and debris.

Binocular Head Overview

This model is a binocular stereoscope, meaning it has two eyepiece tubes for viewing.

It is not a trinocular model, which means it does not include a third port for attaching a camera. If this were a trinocular version, there would be a camera port located on top of the head.

For this customer’s application, a standard binocular configuration was preferred.

The microscope head comes wrapped in a protective plastic cover, and there will also be protective caps on the optical ports. These caps simply unscrew and remove.

Mounting the Microscope Head

Once the protective caps are removed, the stereoscope is almost ready to install.

The microscope head slides into the mounting post on the stand. Before inserting it, check the thumb screw on the stand. If it is tightened too far, the microscope head may not slide into place.

Simply back the thumb screw out slightly, slide the microscope head into the mounting hole, and then tighten the thumb screw to secure it.

Installing the Eyepieces

Next, we’ll install the eyepieces.

The eyepieces are packaged separately in the box. To install them:

1. Loosen the eyepiece retaining screws if they are tightened too far.
2. Slide each eyepiece into the eyepiece tube.
3. Tighten the screws gently to secure them.

Once the eyepieces are installed, the stereoscope is nearly ready for use.

Installing the Protective Collar and Ring Light

The microscope also includes a protective collar that threads onto the bottom of the microscope head.

The microscope will function without this collar, but installing it provides a mounting surface for accessories, such as the ring light.

To install the ring light:

1. Slide the ring light onto the collar.
2. Tighten the small mounting screws.
3. Connect the ring light controller.
4. Plug the power adapter into a wall outlet.

Once plugged in, the ring light provides bright, even illumination for viewing specimens.

Using the Stereo Microscope

This stereoscope includes wide-field eyepieces, and both eyepieces are individually focusable, which is an important feature.

Each eyepiece has a diopter adjustment scale. To begin, align the zero marking with the white dot on both eyepieces. This serves as the starting point for focus adjustments.

Starting at zero ensures that both eyepieces are balanced for users with normal (20/20) vision. From there, you can fine-tune the focus for your eyes if needed.

Focusing and Zoom

To focus on a specimen:

1. Place your specimen on the stage plate.
2. Use the coarse focus knobs to raise or lower the stage until the specimen comes into focus.

The microscope also features a zoom control, allowing you to adjust magnification up to 4.5× zoom.

Applications and Comparisons

The Unatron Z645 stereoscope is an excellent and affordable microscope.

It is comparable to well-known models such as:

• Olympus SZX51
• Nikon SMZ745

This microscope works well for a variety of applications, including:

• Jewelry inspection
• Industrial inspection
• Entomology
• General laboratory work
• Educational use

For many users, it serves as an excellent entry-level stereoscope.

Pricing

This complete setup—including the microscope, stand, and ring light—typically costs around $1,400 plus shipping, making it a very affordable option for high-quality stereo microscopy.

Contact Information

If you have any questions about this stereoscope or other products available through Munday Scientific and Microscope Marketplace, feel free to contact us.

Phone: 919-775-5596
Website: microscopemarketplace.com

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Read the Edited Video Transcript for ‘New Chroma Filters for Your Fluorescence Microscope’

Hey, this is Chad with Munday Scientific. Today we’re going to talk about fluorescence filter cubes, specifically those made by Chroma.

Munday Scientific is a Chroma dealer, and we frequently receive calls from customers who are dealing with issues such as speckled filters, burnt-out cubes, or filters that are no longer performing properly.

These problems often occur when microscopes use mercury light sources, and the light is accidentally left on for too long—sometimes overnight or even over a weekend. When that happens, the excessive exposure can damage the filter coatings, making replacement necessary.

In other cases, researchers may simply need a different filter configuration for a new project or application.

A Cost-Effective Solution

One of the benefits of working with Chroma is that they offer high-quality replacement filters and solutions that can help labs save money.

Many microscope systems use filter cube holders that can be quite expensive—sometimes costing $400 to $600 or more just for the holder itself.

Instead of purchasing an entirely new filter cube assembly, you can often reuse the existing holder and simply replace the filters inside it.

Identifying a Worn or Damaged Filter

For example, if we remove a filter from a cube and inspect it closely, you may notice speckling or visible damage on the surface.

When a filter begins to look speckled like this, it usually means the coating is reaching the end of its life and the filter is no longer performing optimally.

At that point, replacing the filter is the best option to restore proper fluorescence imaging.

Chroma’s Lifetime Warranty

Chroma has introduced an excellent improvement to their filters. Many of their newer filters now come with a lifetime warranty on the coatings.

As long as the filters are used and maintained according to Chroma’s guidelines, the coatings are covered under this warranty.

This makes them a very reliable option for laboratories that depend on consistent fluorescence performance.

Filter Replacement Service

Chroma also offers a convenient filter replacement service.

You can send in your existing filter cube holder, and they will install brand-new filters inside the holder. Once completed, the cube will function essentially like new, and the new filters will be covered under the lifetime warranty.

This is often a much more economical solution than purchasing an entirely new cube assembly.

Used Filter Cube Holders Available

In addition to new filters, we also carry a large inventory of used filter cube holders.

These holders are available for a variety of microscope brands, including:

• Olympus
• Leica
• Nikon
• Zeiss

Buying a used holder instead of a new one can often save hundreds of dollars, which can make a significant difference for labs working within tight budgets.

Supporting Research on a Budget

We understand that research funding can be limited, and many labs are looking for ways to keep their projects moving while managing costs.

By combining used filter cube holders with new Chroma filters, you can often build a high-quality fluorescence setup at a much more affordable price.

Contact Information

If you’re interested in replacing filters, repairing cubes, or setting up a new fluorescence configuration, feel free to reach out to us.

Email: info@mundaymicroscope.com
Phone: 919-775-5596

You can also browse available products at:

microscopemarketplace.com

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Read the Edited Video Transcript for ‘Used Chroma Filters for Sale – Save Big’

Hey, this is Chad with Munday Scientific. Today we’re going to talk about filter cubes and filter sets for Olympus microscopes.

We also carry filter sets for Nikon, Leica, Zeiss, and other microscope brands, but we specialize primarily in Olympus and Nikon systems.

In this video, we’re focusing on used fluorescence filter sets that are available at a discounted price.

Used Filter Sets as a Budget-Friendly Option

We recently made another video discussing brand-new filter sets for microscopes. However, we understand that new filter sets are not always within everyone’s budget.

If purchasing a new set isn’t an option, we offer a large selection of used filter cubes and filter sets that provide excellent performance at a much lower cost.

All of our used filters are carefully inspected and tested to ensure they are in excellent working condition.

Types of Filter Sets Available

We carry filter cubes for many different fluorescence excitations and applications, including:

• GFP filters
• DAPI filters
• FITC filters
• TRITC filters
• Combination filter cubes

In addition to fluorescence filters, we also carry:

• Mirrored cubes
• Reflected light filters
• DIC filters

These filters are compatible with various microscope systems and can be a great way to expand your microscope’s capabilities without paying the price of new components.

Quality Assurance

Even though these filters are pre-owned, we thoroughly inspect and verify their condition before offering them for sale.

While our new filter sets include lifetime warranties, these used filters are still high-quality components that we stand behind. They provide a reliable solution for labs that need cost-effective fluorescence imaging options.

Availability by Brand

Although we do offer some filters for Leica and Zeiss microscopes, our inventory primarily focuses on Olympus and Nikon filter sets.

If you are looking for a specific fluorescence filter cube for one of these systems, we likely have several options available.

Where to Find These Filters

If you’re interested in purchasing used filter sets, you can browse our inventory at microscopemarketplace.com.

Contact Information

If you have questions about filter cubes, filter sets, or compatibility with your microscope, feel free to contact us 919-775-5596.

Closing

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Read the Edited Video Transcript for ‘Olympus BX43 vs BX46 — Which is Right for You?’

Hey, this is Chad with Munday Scientific. Today we’re going to talk about the standard U-H bridge used on Olympus BX microscopes.

The unit shown here is the plug-in style bridge, which is commonly found on older BX microscopes such as the BX40. This particular example is the front-to-back bridge configuration, but the same concepts apply to other bridge styles as well.

In this video, we’ll cover a few common issues users experience with these bridges and explain several solutions.

First Thing to Check: The Power Switch

One of the most common calls we receive is from users who say their pointer bulb will not light up.

Before assuming the bulb has failed, the first thing you should check is the power switch on the microscope stand.

If you are using a BX40 or another older BX model, the bridge receives power through the microscope stand. There is a small on/off switch that controls power to the pointer system, and this switch must be turned on for the bulb to illuminate.

Many users are unaware that this switch exists. In shared labs, someone may accidentally flip the switch off. The next person who uses the microscope may then assume the bulb has burned out when, in reality, the pointer system simply isn’t receiving power.

So the first troubleshooting step is always to make sure the switch is turned on.

Replacing the Original Bulb

The newer style bridges use a built-in LED, but this older model uses a replaceable bulb.

To access the bulb:

1. Loosen the thumb screw on the bridge.
2. Slide the bulb housing out.
3. Remove the old bulb.

If the bulb has failed, you can replace it with a standard replacement bulb like the original. We sell these replacement bulbs on our website.

However, we generally recommend upgrading to an LED replacement instead.

Upgrading to an LED Bulb

Installing the LED replacement is straightforward.

1. Insert the LED bulb into the holder.
2. Slide the housing back into the bridge.
3. Tighten the thumb screw to secure it.

The LED is much brighter and lasts significantly longer than the traditional bulb.

You can also adjust the light intensity using the rheostat knob on the microscope. This control allows you to fine-tune the brightness of the pointer.

Once installed, the LED will typically last a very long time, greatly reducing the need for future replacements.

When the Bridge Electronics Fail

In some cases, the issue isn’t the bulb itself. Instead, the electronics inside the bridge may fail, preventing electricity from reaching the bulb.

If that happens, we have developed another solution here at Munday Scientific.

External LED Pointer Solution

Our alternative solution is an external LED pointer system.

This unit:

• Plugs directly into a wall outlet
• Comes with a USB adapter
• Can also be powered from any standard USB port, such as a computer

When the unit is powered, the LED illuminates. The system includes a small toggle switch for turning the LED on and off.

Using the included double-sided tape, you can mount the switch neatly on the side of the microscope so it acts as your new pointer control.

Installing the External LED System

If the original bridge electronics are no longer working, you can install the external LED system as follows:

1. First, make sure the original bridge cable is unplugged from the back of the microscope.
2. Remove the bulb assembly from the bridge.
3. Because the electronics in the bridge are no longer functional, you can:
   • Cut the old wiring with wire snips, or
   • Simply tape it out of the way if you prefer to leave it attached.

Next:

4. Insert the new LED module into the bridge.
5. Secure it using the thumb screw.

This effectively replaces the old halogen electronics and lighting system.

Using the New LED Pointer

Once installed:

• Use the toggle switch to turn the LED on or off.
• The pointer arrow is still controlled by the bridge adjustment mechanism.
• The existing red and green filters remain intact, allowing you to change the pointer color if desired.

This is a simple and budget-friendly solution for restoring pointer functionality when the original electronics fail.

Compatibility

Although we demonstrated this setup on a front-to-back bridge, the same principle applies to side-by-side bridges.

If you have a newer style bridge with a built-in LED system and are experiencing problems with it, feel free to contact us and we’ll help you find the right solution.

Where to Buy

You can find this product and many other microscope parts at microscopemarketplace.com.

Contact Information

If you have questions about this bridge or other microscope accessories, feel free to contact us at 919-775-5596

Closing

Thanks for watching. If you’d like to see more tips and solutions like this, be sure to like and follow the video.

The post Olympus BX43 vs BX46 — Which is Right for You? appeared first on Munday Scientific Instruments.

Read the Edited Video Transcript for ‘Upgrade Olympus Pointer, LED for U-SDO, U-DO & BH2’

Hey, this is Chad with Munday Scientific. Today we’re going to talk about the standard U-H bridge on the Olympus BX microscope series.

The model we’re demonstrating is the plug-in style bridge used on microscopes like the BX40 and other older BX models. This is the front-to-back bridge style, but the same principles apply to other bridge configurations as well.

We’re going to cover some common issues, how to replace the bulb, and a modern LED solution if the original electronics fail.

Checking the Power Switch

One of the most common calls we receive is from users who believe their pointer bulb has burned out.

Before assuming the bulb is bad, the first thing you should check is the power switch on the microscope stand.

If you have a BX40 or another older BX microscope, the bridge receives power from the stand. There is a small on/off switch that controls power to the pointer system.

If this switch is turned off, the pointer will not illuminate.

This happens frequently in shared lab environments where multiple people use the microscope. Someone may accidentally flip the switch without realizing it, and the primary user later assumes the bulb has failed.

So the first step is always to confirm that the switch is turned on.

Replacing the Original Pointer Bulb

This particular bridge uses a small removable bulb.

To access the bulb:

1. Loosen the thumb screw on the bridge.
2. Slide the bulb housing out.
3. Remove the old bulb.

If the bulb has burned out, you can replace it with a standard replacement bulb. We carry these replacement bulbs on our website.

However, we typically recommend upgrading to an LED replacement instead.

Installing an LED Replacement Bulb

To install the LED upgrade:

1. Insert the LED bulb into the holder.
2. Slide the bulb housing back into the bridge.
3. Tighten the thumb screw to secure it.

The LED is significantly brighter and longer-lasting than the original bulb.

The light intensity can also be adjusted using the rheostat knob on the microscope, which controls the brightness of the pointer.

Once installed, the LED should last a very long time compared to traditional bulbs.

When the Bridge Electronics Fail

Sometimes the issue isn’t the bulb itself. Instead, the electronics inside the bridge may fail, preventing electricity from reaching the bulb.

If this happens, we have developed another solution here at Munday Scientific.

This system bypasses the internal electronics entirely.

External LED Pointer Solution

Our alternative solution is an external LED pointer system.

The unit:

• Plugs directly into a wall outlet
• Includes a USB adapter
• Can also plug into any standard USB port, such as a computer

Once plugged in, the LED illuminates immediately.

The system includes:

• A small toggle switch for turning the LED on and off
• Double-sided tape so the switch can be mounted on the side of the microscope

This becomes your new pointer control.

Installing the External LED System

To install this solution:

1. First make sure the original bridge cable is unplugged from the back of the microscope.
2. Remove the original bulb from the bridge.
3. If the electronics in the bridge are no longer functional, you can:
   • Cut the old wire with wire snips, or
   • Simply tape it out of the way if you prefer to leave it attached.

Next:

4. Insert the new LED pointer module into the bridge.
5. Secure it using the thumb screw.

This effectively replaces the original halogen bulb system and its electronics.

Operating the New Pointer

Once installed:

• Use the toggle switch to turn the LED on or off.
• The pointer arrow is still controlled using the existing pointer adjustment on the bridge.
• You can also change the pointer color by pulling the red or green filters, which remain intact.

This is a simple and affordable solution for restoring pointer functionality when the original electronics fail.

Compatibility

Although we demonstrated this on a front-to-back bridge, the same concept works for side-by-side bridge configurations as well.

If you have a newer Olympus bridge with a built-in LED, the setup may be different. If you’re experiencing problems with that system, feel free to contact us and we’ll help you find the right solution.

Where to Buy

You can also find this product and many other microscope parts at microscopemarketplace.com.

Contact Information

If you have any questions about this bridge or other microscope accessories, feel free to contact us 919-775-5596.

The post Upgrade Olympus Pointer, LED for U-SDO, U-DO & BH2 appeared first on Munday Scientific Instruments.

Read the edited Video Transcript for “Nikon THP Pointer, LED Upgrade Tutorial”

Hey, this is Chad with Munday Scientific. Today we’re going to talk about the pointer system on a Nikon microscope. Michael is going to come in and help demonstrate this.

This solution works for both front-to-back bridge microscopes and side-by-side bridge microscopes.

Common Problems with the Original Pointer System

The original pointer system often fails for several reasons.

Inside the unit there is a small bulb that eventually burns out and needs replacement. In addition, the cap that holds the bulb is frequently lost.

Another common issue is the brass or copper contact piece, which can either go missing or fail to make a proper electrical connection. Many times when we service these microscopes, we find that one or more of these parts has been lost.

The Monday Scientific LED Replacement

To solve these issues, we developed a direct-fit LED replacement here at Munday Scientific.

This replacement unit plugs directly into the wall, eliminating the need for the original bulb and its fragile components.

Installation

Installation is quick and simple.

First, plug the unit into a power outlet.

When inserting the pointer module, you’ll notice small keyways on the device. We’ve designed the replacement with matching notches to align with those keyways.

To install:

1. Align the notches with the keyways.
2. Insert the part into the microscope.
3. Push it in and rotate it to lock it into place.

Once installed, the pointer is controlled by the click button on the unit. Pressing the button turns the LED on or off.

Mounting the Unit

We include a piece of double-sided tape with the unit so you can mount the controller neatly to the side of the microscope.

This keeps everything clean and accessible while allowing you to easily control the LED pointer.

Benefits of the LED Replacement

Our goal with this design was to replace the components that are most commonly lost, broken, or unreliable.

With this LED system:

• No fragile bulb to replace
• No missing caps or contact pieces
• Reliable LED illumination
• Simple installation and operation

This replacement works with side-by-side and front-to-back bridge Nikon microscopes. The example shown here is a Nikon THP model. The exact part number will be included in the description link.

Where to Buy / Contact us

If you have questions about this product or any of the other products we offer at Munday Scientific, feel free to contact us.

You can also purchase this product directly at microscopemarketplace.com.

The post Nikon THP Pointer, LED Upgrade Tutorial appeared first on Munday Scientific Instruments.

Read the edited video transcript for ‘Olympus IX71 Fluorescence Microscope Setup & Assembly’

All right, let’s take it apart and get it ready to ship.

Someone just called and purchased this EX-71 microscope, so we’re going to show you how to take it apart, put it back together, and go over a few key features. This is Chad with Munday Scientific and Microscope Marketplace, and Scott is on the camera today.

Overview of the Microscope

This is a very nice scope, and we’ll walk through it step by step. We’ll start at the top and work our way down so you can see exactly how everything comes apart and goes back together.

Removing and Installing the Binocular Head

This microscope is equipped with a tilting binocular head. To remove it, use the 3 mm Allen wrench, which is included with the scope and stored on the back.

Insert the wrench at a diagonal, hold the head securely, and loosen the screw. The head will come right off.

This ergonomic head includes two 10x eyepieces with rubber eyecups and a diopter tube on one side. The diopter is focusable. Line the white dot up with zero for a good starting point—this will be close to perfect focus for most users. You can then fine-tune from there if needed.

To reinstall the head, insert the wrench into the screw hole first, place the head onto the dovetail, and tighten it down. Always give it a slight wiggle to ensure it’s secure before letting go.

Phase Contrast System and Condenser Features

This scope is equipped with phase contrast, and we’ve already aligned the phase rings for the customer. It includes Phase 1, Phase 2, and a brightfield position. If there is no phase ring in the stop, that position is considered brightfield.

Each phase ring must align with the corresponding phase objective. You can rotate the condenser to select the appropriate phase ring, using the arrow indicator to confirm positioning.

The condenser can also tilt back, which is useful when working with large well plates. If you prefer it not to tilt, we’ll show you how to lock that feature later.

Removing the Stage

The stage includes a removable stage plate and adjustable coaxial controls for ergonomic positioning.

Using a 4 mm Allen wrench, remove the four bolts that secure the stage. We recommend ball-end Allen wrenches, as they allow you to work at an angle. Once removed, set the stage aside.

Objectives and Phase Alignment

This scope includes phase objectives, which were tested prior to shipping. The 20X is a Phase 1 objective, and the 40X is a Phase 2 objective.

For proper phase contrast, the corresponding phase ring must be selected in the condenser. Once aligned, the system is ready for use.

Removing and Installing the Condenser

To remove the condenser, loosen the thumb screw and slide it out. When reinstalling, insert it at a slight angle and rotate it until it clicks into place. This click indicates proper alignment. Once aligned, tighten the thumb screw to lock it in.

Lamp Housing Removal

This scope uses a 12V, 100W halogen lamp housing. To remove it, loosen the two 3 mm Allen screws—one on the top and one on the side—and lift the housing off.

If fluorescence is on, make sure to turn it off before removing any components.

Removing the Illumination Column

Before shipping, the illumination column will be removed.

Raise the nosepiece first. Remove the neutral density filter assembly using the thumb screw. Then, using the 4 mm Allen wrench, loosen the two bolts—one on each side of the column.

Before removing the illuminator, make sure to remove the diaphragm linkage screw. Once loosened, gently wiggle the column and lift it out.

To reinstall, insert it back into the same position, tighten the Allen bolts securely, and reinstall the diaphragm linkage.

Fluorescence Components and Filter Cubes

This scope includes fluorescence, and the cube turret can be removed using a 3 mm Allen wrench.

This customer requested DAPI, FITC, and TRITC filter cubes. The cubes slide in and out easily once unlocked. Blank positions are available for brightfield use.

The turret is magnetic and slides into place on a dovetail. There is also a shutter that should be opened when using fluorescence and closed when stepping away from the scope to protect the filter cubes.

Locking the Illumination Column Tilt

The illumination column can tilt back and forth for flexibility. If you prefer it fixed, use the 3 mm Allen screw to lock it in place. Loosening the screw allows more range of motion; tightening it limits movement.

Correction Collar on the 40X Objective

The 40X objective includes a correction collar. When viewing standard slides, set it to 17. When viewing dishes or thicker specimens, adjust the collar to compensate for thickness and refocus as needed.

Light Source and Remote Control

The halogen light source is controlled by the main power switch and rheostat. A remote control cable is included with the scope. This cable plugs into the rear of the light source and into the designated port under the optional accessory panel, allowing light control from the front of the scope.

Final Assembly and Closing

To finish reassembly, reinstall the illumination column, condenser, lamp housing, stage, and head. Always support components with two hands and ensure all screws are tightened securely.

That’s about it for this EX-71 microscope. If you have any questions, you can give us a call at 919-775-5596 or email us at info@mundaymicroscope.com—that’s Munday with a “U.”

If this video brought you value, please like and subscribe. Thanks.

The post Olympus IX71 Fluorescence Microscope Setup & Assembly appeared first on Munday Scientific Instruments.