What is the difference between a biological microscope and a stereo microscope?

The main differences between a biological microscope and a stereomicroscope lie in their application, working distance, placement of objects, depth of field range, magnification, and imaging method. ‌

Application
Biological microscopes are mainly used to observe the structure and function of biological samples, such as cells, tissues, microorganisms, etc.  Stereoscopic microscopes are widely used in fields such as materials science, engineering technology, and quality inspection, such as material surface analysis, product quality inspection, industrial manufacturing, etc. ‌

Work distance
The working distance of a biological microscope usually does not exceed 20mm, while the working distance of a stereomicroscope is larger, reaching 50mm, 200mm or even more. ‌

Observing items
Biological microscopes is used to observe transparent samples such as thin sheets and glass slides, while stereomicroscopes can observe bigger and thicker objects such as integrated circuis, larger workpieces, screws, etc.

Depth of Viewing Field
The depth of field of a biological microscope is relatively small; The depth of field range of the stereo microscope is relatively large, reaching up to 10mm, and adjusting the focusing ring can bring clear images over a large range.

Magnification
The magnification of biological microscopes is generally high, reaching up to 2000 times or even higher; The magnification of a stereomicroscope is relatively small, usually around 200 times.

Imaging method
Biological microscopes typically use transmission imaging and are suitable for observing transparent samples; Stereoscopic microscopes typically use reflective imaging, which is suitable for observing opaque samples. ‌