I had a bit of a breakthrough a couple of years ago playing with a Microsoft USB camera. (Not that it's specific to MS but that's what brand it was.) Anyway, w

I had a bit of a breakthrough a couple of years ago playing with a Microsoft USB camera. (Not that it's specific to MS but that's what brand it was.) Anyway, when I took the plastic shell off the outside, the lens was mounted on a threaded base that could be adjusted in and out. With the right adjustments, the camera became a microscope - not enough to see pollen or anything like that, but enough to get a 1080p picture dominated by an ant's face.