The "Secrets Series" on image-based visual inspection. This time, we cover lenses and depth of field.IntroductionWhether rule ...

A compound microscope uses two lens systems in series — an objective that forms a magnified real image, and an eyepiece that magnifies that image again — which is what separates it from a simple ...

If you’re into macro photography, you might be wondering why so many macro lenses emphasize a wide aperture; f/2.8 is nice to have, but when focused down to 1:1, it’ll leave you with no depth of field ...

This is a Power Point on mirrors and using the mirror equation, magnification equation and index of refraction to solve mirror problems. It includes solving for the height of the image, solving for ...