AVerVision M70 - document camera

At 192x, the M70 packs one of the biggest zooms you will find in a document camera. With this level of magnification, you can actually see chemical reactions at work, including yeast converting sugar water into energy and carbon dioxide. It looks like networks of gears and cogs in motion. A bonus is that when you are in digital zoom, you can move around the image while you are still zoomed in.