This gadget combines a regular camera, a 400x microscope and a macro shooter for less than $100. Simply twist its rotating lens to flip between modes. The MicroCam packs a Sony sensor for 4k video and 12 MP photos. It has a built-in ring light and a 3.5″, 264ppm display for previewing images, and stores images on a MicroSD card or connects to your PC via USB.