High power objective lens

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Because if you use the coarse adjustment under high power, there is a greater risk that you will crack the slide on the microscope and damage it. The fine adjustment only moves the objective lense ...

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Because the objective is so close to the stage/ specimen and you don't want to damage anything . What happens to the brightness of the view when you go from low to high power? Going to high power on a microscope decreases the area of the field of view. The field of view is inversely proportional to the magnification of the objective lens.The diameter of the objective lens is measured in mm and it is the same as the size of the aperture. The second number acquainted with the magnification power is meant to describe the size of the aperture thus the diameter of the given objective lens. For example, in a 10x42 binocular the 42 mm is the description of the diameter of the ...

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Obviously, you would want your objective lens to be further away. A longer working distance can provide a unique advantage when observing specimens where more distance from the objective is desirable. However, because higher power objective lenses require a higher numerical aperture, they must be closer to the light source and specimen.

Apr 07, 2020 · A high power objective lens is an important part of a microscope that magnifies up to 40 times. This lens is used for observing fine details such as muscle striations and retinal nerve cells. The strength is second only to an oil immersion objective lens, which magnifies up to 100 times.