Offered here is a very nice instrument from Czur.
Czur Fancy S Pro Webcam and Flexible Document Camera
Can be used for live webcam and/or for document scanning.
12mp resolution color camera that is adjustable.
Includes finger cots used for holding pages open at times. The pattern of the cot is such that they do not appear on the scanned image.
I purchased this new when it was first introduced by the manufacturer but never used it.
I did set it up and ensure the device works properly.
Feel free to ask any questions.
