lens aperture

How Do You Increase The Depth Of Field On A Microscope?

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How Do You Increase The Depth Of Field On A Microscope? How do you increase the depth of field on a microscope? . Changing the lens focal length to affect d.o.f. from a given subject-camera distance is changing the image magnification, in effect.To make a field stop, cut/or punch a clean circular hole in an

What Does The Diaphragm In A Camera Lens Control?

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What Does The Diaphragm In A Camera Lens Control? A diaphragm is a camera component within a lens comprised of overlapping metal blades (the iris) that open and close to change the size of the opening (they allow different levels of light to pass through to the sensor – thus controlling the aperture (or f-number)