Reseach Stereo Microscope with Turret Mount And Dual Illumination, Monoscope 20x

Quick Answer: The Research Stereo Microscope with Turret Mount and Dual Illumination (listed as Monoscope 20x) is a research-level stereo microscope that changes magnification with a rotating turret and has two illumination sources. As a turret stereo microscope it gives fixed, repeatable magnification steps rather than a continuous zoom.

Turret Magnification and Two Light Sources

A turret stereo microscope carries its objectives or magnification changers on a rotating mount. Turning the turret clicks one into the light path, giving a fixed step. Compared with a zoom body the change is not continuous, but each setting is repeatable, which helps when a technician measures structures, compares specimens at the same magnification or trains students to report at defined powers.

Dual illumination on a stereo microscope normally means two light sources: one above the specimen for opaque surfaces and one below for translucent material, used separately or together. The listing does not name the lamp type. Both lights at low intensity are often the clearest way to view specimens such as small larvae in a clear dish, where the top light shows colour and the bottom light shows outline.

The listing also carries the note Monoscope 20x. The 20x appears to be a magnification figure; how it relates to the turret steps and eyepieces, and whether Monoscope describes the viewing head, is not explained, so confirm the configuration before ordering.

Specifications

Care & Handling

• Rotate the turret of the turret stereo microscope by its ring until it clicks; stopping between positions gives a dark or cut-off field.
• Run each light at the lowest brightness that shows the detail, which spares both the specimen and the lamp.
• Clean the bottom-light stage glass on both faces, because fingerprints underneath show up as blotches in transmitted light.
• Switch off both lights and fit the cover at the end of the session.

Applications

• Entomology and taxonomy work that needs repeatable magnifications for identification
• Examining seeds, grain and stored-product pests
• Viewing translucent specimens such as larvae, small crustaceans or fish eggs with bottom light
• Botanical dissection under combined top and bottom lighting

Why Choose LabEquip

Research labs in entomology, agriculture and zoology, and quality-control rooms that need repeatable magnifications, buy this turret model. It is listed within the LabEquip Microscope & Optics range alongside stereo zoom models; ask about the turret steps and head on the contact page.

Frequently Asked Questions

Turret or zoom: which suits my work?

Choose a turret if you need to return to exactly the same magnification, for example for measuring or comparing specimens. Choose a zoom if you mainly search and inspect, since a zoom moves smoothly from wide view to detail without clicking through steps.

What does dual illumination mean?

Two light sources, normally one above the specimen and one beneath the stage. The top light shows surface colour and texture; the bottom light shines through translucent specimens. They can be used together.

What does Monoscope 20x in the name refer to?

The listing does not explain it. The 20x appears to be a magnification figure, and the turret steps and eyepieces together set the magnifications available, so confirm the head configuration and steps before ordering.

Why is part of the field dark after turning the turret?

The turret is not fully clicked into position. Turn it gently until it locks. If the field is still cut off, the detent may be worn and needs servicing.

How do I measure specimens under it?

Fit an eyepiece reticle, if available, and calibrate it against a stage micrometer at each turret position. Because turret steps are fixed, one calibration per step stays valid.

How can I reduce glare from wet specimens?

Lower the top light’s angle or reduce its intensity, and rely on the bottom light for outline. Tilting the top light slightly away from the objective stops reflections from the water surface entering it.

Last Updated: September 2026