Celestron 44302 Deluxe Handheld Digital Microscope 2MP
The image quality is good and I can use this camera / microscope on my Mac under OS Lion with the Photo Booth application. The illumination is good and the sharpness is good. At higher magnifications, it is a challenge to focus since there is not a rack and pinion type of focuser. You have to just make small adjustments to the stand or what you are observing. Since depth of field is shallow this can be tricky. The device is not parafocal. That means that different zoom levels require different focus positions. Yes, these are problems but overall this is a great way to see small things on your computer with reasonable quality.