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Field of View

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hasanahatesscience's version from 2015-09-25 11:55

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Question Answer
equationobjective lens times the ocular lens ex: (100x) x (10x) = 1000x
field of view LOW POWERplace clear plastic ruler with mm markings on stage, focus under low power. measure diameter of circle you see. count how many mm in FOV.
1mm is equal to1000 micrometres
equation to determine the FOV for medium power at 100xFOV under low power x low magnification (10x) ex: 5mm x 10x divided by 100x. THEREFORE 0.5mm = 500 micrometres
equation to determine FOv under high power with magnification of 400 xlow FOV x loq magnification (10x) ex: (5mm) (10x) divided by 400x = 0.125 mm = 125 micrometres
memorize

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