Review Content Manual could be improved The converter works very well. The manual however is not too good. The part expaling how to work the icons seems written in shorthand. I was able to understand it after several readings of the very small print. The main failing, however, is in explaining how to clean the dirty lens. You explain how it gets dirty----and supply a black stick with a white cotton (?) side tip---but nowhere do you explain how to use it--or how to disassemble the bottom part of the converter to get at the lens to clean it. I am pleased with the product which does a much quicker job than a flatbed scanner. The quality of the image is better too. I am frustrated by cleaning the slides & negatives carefully and having a few dots show up from dirt on the lens. Works as advertised Unlike cheaper devices this device works as advertised. The only negative about this item is that the controls are somewhat difficult as they use 3 buttons for multiple functions. Overall, worthwhile.