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Q: What is the 4x field of view in mm?
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What objective lens shows largest field of view?

The lens with the smallest magnification has the largest field of view.( usually 4x)


Diameter of the field of view in millimeters when using the 4X objective?

five


What would be the size of an object in mm that occupies 25 of the size of a field of view that is 32mm in diameter?

If the entire field of view is 32 mm and the object occupies 25% of that then you will multiply 32 by 0.25. The result is 8 mm.


The diameter of a microscope's field of view is estimated to be 0.9 mm . about how wide is an object that fills two thirds of the field circle your answer?

0.6 mm


A unicellular organism takes up one third of the field of view at medium power what is the actuall size of the organism?

0.56 mm. because total field of view on medium power is 1.7 mm. divide this with 3 and you get 0.56.


Is a grid slide with 1 mm squares used to directly measure the field of view?

yes.


What will happen to the field of view as you change objectives form 4x to 10x to 40x?

it will increase the magnification of the image of specimen


What is the difference between a 200mm lens and a 20 times lens?

It depends on the actual focal length. For a 35 mm format lens, 200 mm is about 4x magnification, to get 20x you'd need a 1000 mm lens. For smaller formats, such as 8 mm or a camcorder, find the focal length for normal view, then multiply by 20.


Does the 4x or the 10x objective have a shorter depth of field?

100x the higher the magnification the shorter the working distance


Why would the 4x provide the largest field of view rather than the 40x when using a microscope?

40x is magnified more, so if you zoom in on something, you're only seeing a part of what it was before. Versus, if you zoom out, you see more. It's not as detailed, but it's a larger field of view.


Diameter of field is 1.6 mm and you count 40 consecutive cells from one end of field to other how wide is each cell in micrometers?

1,600 (micrometers {microns} per one field of view) divided by 40 (cells per field of view) equals [units cancel] 40 microns per cell.


What does the 18-200 camera lens digits stand for?

18 mm is the wide angle focal length and 200 mm is the telephoto limit of the zoom. for more info searching on focal length and field of view will give you lots of info.