AmScope B490B-3M Digital Compound Binocular Microscope 

** WF10x and WF20x Eyepieces, 40X-2000X Magnification, Brightfield, LED Illumination, Abbe Condenser, Double-Layer Mechanical Stage, Sliding Head, High-Resolution Optics, Anti-Mold, Includes 3MP Camera with Reduction Lens and Software **


The AmScope B490B-3M digital compound binocular microscope is an expert microscope that comes with a 3MP digital camera, 3D mechanical stage, a 360 level swiveling head as well as eight levels of magnification. With these and a few other features in place, the AmScope B490B-3M is ideal for teaching demonstration, clinical assessments as well as other research purposes. 

Some of the other features of the AmScope B490B-3M include:

  • Widefield optics
  • Advanced software for processing and measuring
  • 3MP high definition camera with 0.5x decrease lens
  • Halogen bulb

AmScope B490B-3M Description

The AmScope B490B-3M is a professional microscope that comes with a number of features to ensure best user experience. The microscope has been designed to accommodate different users.

For instance, it comes with a sliding head with a range of between 55 and 75mm, which accommodates for different interpupillary distance and allows for bi-lateral dioptric adjustments thus accommodating for individual eye-strength differences. These features are particularly important for students given that kids of different ages may need to make adjustments these adjustments in order to observe the specimen.

Depending on the needs of the user, the microscope comes with WF10x and WF20x Eyepieces which can be easily interchanged when viewing different types of specimen. The microscope head is fixed at a 30 degree vertical inclination and can be turned 360 degrees, which ensures ease of use and allows for sharing without the need to move the microscope.

The microscope also comes with a 3MP digital camera with an integral reduction lens. The 0.5x reduction lens is an important feature given that it reduces magnification by half, which helps increase the field of view. With a wide field of view, users also get to observe a larger field and this more of the specimen.

In addition to a 3MP camera, the microscope also comes with user-friendly PC software (supports JPG, TIF, GIF, PSD, WMF, and BMP file formats) and adapters compatible with Windows XP/Vista/7/8, Mac OS and Linux.

The software also comes with Windows APIs for native C/C++, C#, DirectShow, Twain, and LabVIEW which enable custom application development.  The features make it possible for the user to capture live images and real-time live video on the monitor (computer display screen) for easy viewing. Moreover, these features allow for editing and measurements, which is particularly important in clinical assessments and research.

By having a detachable digital camera in place, users can also connect the microscope to a PC using the USB cable. This provides a great advantage for students given that it allows them to share the microscope when observing given specimen. It can also be used to make presentations in class.

** the digital camera can be easily detached - This is a big advantage given that users can easily replace or upgrade the camera whenever they need to.


Other features include:

  • Halogen illumination with rheostat to control light intensity
  • 1.25 NA Abbe condenser with iris diaphragm
  • Rack-and-pinion focus control for precise focus, clear examination, and light control
  • USB 2.0 data port
  • (2) Color filters; blue and green
  • CMOS color sensor for displaying still microscopy images and streaming live videos to a computer or projector


The AmScope B490B-3M digital compound binocular microscope is a versatile instrument that has been prepared with a number of add-ons and attachment for additional features. This increases functionalities of the microscope, which in turn allows the microscope to be used in a number of fields. It is this capabilities that make the AmScope B490B-3M digital compound binocular microscope an ideal microscope for teaching, clinical assessment and research.

Pros and Cons


  • It is a solid and very stable microscope
  • High quality optics that provide a clear and crisp view
  • Easy to set-up (user-friendly software)
  • It's a versatile instrument
  • High quality camera that produces clear images and high quality videos



Users may need to upgrade the original set of objectives to plan objectives.



The AmScope B490B-3M digital compound binocular microscope is a professional microscope that can also be used by younger students given that it is very easy to use. It comes with great features that make sure that it meets the various needs of different users.

The high quality camera is the highlight of the microscope. It is easy to use and produces high quality images and videos that will satisfy the user. Overall, it is an excellent product worth checking out.

Here's AmScope 40X-2500X LED Digital Binocular Compound Microscope plus 3D Stage and 5Mp USB Camera to check out.

And read about the Amscope 40X-2000X Biological Microscope with Mechanical Stage as well

Return to Amscope Buyer's Guide Main Page for all AmScope microscope reviews.

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