Low magnification microscope. The distance across the field of vision. Field of view. Since you are viewing larger samples, the magnification range of the dissecting microscope is lower than the compound light microscope. We’ll look at some example and see how scientists and engineers calculate this and use this. Resolution. Examples of how to use Field of View. Another microscope that you will use in lab is a stereoscopic or a dissecting microscope. The vertical extent to which one can view a specimen with greatest resolution. Distance between the tip of the objective lens of a microscope and the specimen being observed. The stereo, stereoscopic or dissecting microscope is an optical microscope variant designed for low magnification observation of a sample, typically using light reflected from the surface of an object rather than transmitted through it. Simple enough, right? A microscope’s field of view is basically the diameter of that circular area that appears when you look into a microscope. The digital dissection microscope allows you to view a live image on your computer screen or on the included tablet while dissecting your specimen. The diameter of the field in an optical microscope is expressed by the field-of-view number, or simply the field number, which is the diameter of the view field in millimeters measured at the intermediate image plane. Working distance. Depth of field . While a compound light microscope is a great tool for observing entities that are unable to be seen, a dissecting microscope is a much better choice for those who are working in the field collecting specimens that are large enough to see but too small to see all the details. These tools are not only great for scientists, but also for anyone who is curious about in-depth observations. Most of the surgeons opt for this microscope because of the view dimension it provides. Dissecting or stereo microscope. This type of microscope uses visible light view thicker, larger specimens, such as an insect, in 3D. The dissecting microscope can also be used for biological applications, and even microsurgeries as this microscope provide magnification together with a wider field of vision. The instrument uses two separate optical paths with two objectives and eyepieces to provide slightly different viewing angles to the left and right eyes. Figure 1 - Field Diaphragm Location in Eyepiece Designs In most cases, the eyepiece field diaphragm opening diameter determines the view field size. This is quite helpful in the classroom setting, where more than one student can gather around the computer monitor or the tablet LCD microscope.
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