Ideal for biological students and microscopy enthusiasts, the BRESSER Erudit Basic 40-400x Binocular Microscopeis powered by a three AA batteries that allow you to take it into the field for hours of on-the-ground research and comes with a universal smartphone adapter to capture photos and videos of your specimens through the eyepiece for documentation and sharing. Its binocular head is set at a comfortable 45° angle to the body for a natural viewing position and can rotate a full 360° to make sharing the view among lab partners and colleagues simple and easy. It comes equipped with two 10x wide-field eyepieces that, when combined with the objectives, produce magnifications from 40x to 400x—making it ideal for viewing a wide variety of specimens, including thin sections, pond life, or skin and fur parasites. Employing a binocular head enables you to use the microscope with both eyes open, eliminating the eyestrain that is often associated with having to hold one closed for viewing.

Its dual-speed coaxial focuser features coarse and fine adjustments to ensure views are tack sharp. A large stage has integrated slide holders that can be used with one hand to make changing slides fast and a Vernier scale on the X and Y axes for measuring your specimens. The lower LED illuminator has a rheostat to control the intensity and is directed through a large 1.25 NA Abbe condenser with a simple iris diaphragm that gives you extreme control of the light coming through to the stage. The aperture of the condenser is larger than the highest-power objective, so you can be sure that the appropriate amount of light is transmitted to the specimen at all magnifications. Current LED technology delivers higher light efficiency than a conventional tungsten bulb with a cool operating temperature that prolongs specimen life when viewing live material and extends battery life when working in the field.

Two 10x Wide-Field 23mm Eyepieces    360° Rotating, 45° Angled Binocular Head    4x, 10x, 40x DIN Achromat Objectives    Dual-Speed Coaxial Focuser    1.25 N.A. Abbe Condenser    Iris Diaphragm with Filter Holder    Large Stage with Slide Holder    Variable Lower LED Illumination    X-Y Vernier Stage Scale    Runs on Three AA Batteries

• Dual 10x wide-field eyepieces
• Binocular head allows for both-eyes-open viewing—offering optimum comfort and reduced eyestrain
• Eyepieces set at a 45° angle to place user's head in a comfortable viewing position
• 360° rotating head make it easy to share around a table with lab partners and colleagues
• Adjustable interpupillary distance and dioptric correction enable users with different size faces and eye strength to easily achieve tack-sharp views
• Triple-objective turret offers three magnification choices to provide a wide range for a variety of applications: 40x, 100x, 400x
• DIN standard 4x, 10x, and 40x objectives
• 40x objective is spring loaded to prevent damage if it comes into contact with specimen or stage
• Achromatic objectives provide clear and distortion-free views, especially at the edges
• Hard plastic carrying case

• Dual-speed coarse and fine coaxial focusing mechanism produces tack-sharp views for all users
• Fine focus knob has a scale for precise repeatability
• Large specimen stage with integrated one-hand operation slide holder and X/Y Vernier scale
• Coaxial adjustable stage enables precise specimen placement for optimum illumination and viewing
• Large 1.25 NA Abbe condenser with iris diaphragm and filter holder allows the user to precisely control the amount and color of light transmitted to the specimen to improve their subject's contrast for better views
• Holder accepts 32mm diameter, 1.5mm thick filters to change the light color for improved contrast
• Variable-intensity lower LED illuminator provides transmitted specimen illumination
• Runs on three AA batteries for work in the field
• Slide set with blank and prepared sides

• Easy to install and remove onto either eyepiece
• Take photos and video of specimens through the eyepiece for easy retention and sharing
• Designed to fit most popular smartphones
• Fully adjustable to accommodate different camera positions
• Outfitted with an array of suction cups to hold the phone safe and secure
• Thumbscrew holds the adapter onto eyepiece

Related Questions and Answers

Q: 1. I notice it does not have dual lighting (no upper light, only lower). How good is the illumination for opaque objects?

A: The model has a Halogen Light, so pretty powerful.

Q: 2. Hi Not long ago I bought via B&H the BRESSER Researcher ICD LED 20-80x Stereo Microscope, and I'm very pleased with it. I would like to order also the Celestron 5.0MP Digital Microscope Imager (recommended as an accessory), however the spec information mentions that the imager will fit microscope eyepieces with 0.9" (23mm) and 1.18" (30mm) diameters. My microscope eyepieces diameter diameters are 30.5 mm – will the imager still fit?

A: That Imager will not work. My apologies for the confusion. However the BRESSER MikrOkular Full HD Eyepiece USB Camera (Black) will work with this Model. I just double checked Bresser's Site. Link to Item: https://bhpho.to/3bbAYKu

Q: 3. Can I attach a Canon 6D (or other Canon EF mount camera) to this microscope and if yes, which adapter will work with it? Thank you.

A: You would need these 2 parts: https://bhpho.to/30gjiai Plus: https://bhpho.to/33i5VZn

Q: 4. Does this microscope use prisms or mirrors? Are the objectives DIN compatible?

A: The 44132 uses prisms, and the objectives are DIN compatible.

Q: 5. Can you confirm the voltage rating as the Celestron website shows the Can you confirm the voltage for the power as the Celestron website shows it being - AC plug (110-240V)?

A: I am using it with 240V and working properly.

Q: 6. Comes in a nice box so I could safely repackage if I moved?

A: The box that the CELESTRON LABS CB2000C Compound Binocular Microscope with 5.5 x 5.5" Mechanical Stage comes in could be used for storage and transport too.

Q: 7. Does the Trinocular eyepiece tube accept a particular camera that can connect to a mac laptop so we can see the specimen displayed on the computer?

A: The CELESTRON LABS CB2000C Compound Binocular Microscope with 5.5 x 5.5" Mechanical Stage BH #CECB2000C • MFR #44132 does not have a trinocular eyepiece. It is a binocular eyepiece

Q: 8. I notice The Celestron CB2000CF does not have dual lighting (no upper light, only lower). How good is the illumination for opaque objects? Do you find this a limitation?

A: We use it for fecal parasite screens in my veterinary practice, so the lack of an upper light source is not an issue for us, as the samples are suspended in a brine solution and placed on the slide for microscopic examination.

Q: 9. The stage size is the only difference between the cb2000c and cf?

A: The CELESTRON LABS CB2000CF has a 4.3 x 4.7 Mechanical Stage/Slide Holder. The CELESTRON LABS CB2000C has 5.5 x 5.5 Mechanical Stage/Slide Holder.

Q: 10. Is it possible to buy affordable replacement light bulbs for the illumination system?

A: We don't sell them. You would have to contact the manufacturer.