It sounds as if, for quality of result, and faster scanning, you need something like an Epson FastFoto FF-640 High-Speed Photo Scanning - https://www.amazon.com/Epson-FF-640-High-Speed-Certified-Refurbished/dp/B01HR89FNK/ref=sr_1_5/141-8433220-8137806?ie=UTF8&qid=1526946559&sr=8-5&keywords=autofeed+scannerI don't know anything about this device, but found your question interesting, so I searched Amazon.com to see what might be available.There appear to be less expensive options but they likely would have trade offs for costing less.And, I can imagine there are much more expensive machines available.Jim.