The Veho Deluxe USB Powered Microscope is the perfect tool to get a close-up of your knife edges. It will magnify at 20X and 400X with the OMOS lens. It can take 2 megapixel pictures with the included software, so you can compare before and after images during the sharpening process. It measures 5.3 x 4.3 x 8.8 inches and weighs in at 9.6 ounces.
High quality. I like the ability to take photos with it to show the difference between stone progressions. Takes some time to use since the focus is a dial on the unit and small movements while moving the knife around underneath changes your focus slighty. Somewhat touchy. All in all a great product and would buy it again.