The answer is short and easy - none. I do not recommend any digital binocular
if you are serious about good picture quality. Digital binoculars
are about the convenience of having two instruments in one, not about performance. They are great for emailing pics or sharing with friends, but if you are concerned about pic quality, you'll get better pics with ANY digital point and shoot camera. No, under $100 is not going to happen. Get a real camera. Any of the current Canon
Powershot A series are a good choice and several are priced under $200. Any of them will take better pics than any digital bino, once you have a pic in a photo program and start to crop.