I have a huge pile of 35mm film negatives I'm looking to digitize. I would very much like to use my 5d3, however, I'm not sure what kind of equipment I would need to accomplish the task with quality results and reasonable efficiency.
I've tried some things such as using macro extension tubes and using a cup to retain the film (the DRTV method) at the end of the lens, but such crude methods don't produce consistent results and are very slow to set up. Especially when the negatives are slightly curled, it's very difficult to get accurate focus.
I looked online and some vendors seem to make slide duplicators which can be threaded onto the end of your lens, but they don't seem to have 35mm film trays nor 77mm filter threads.
If no such product exists, I also wouldn't be opposed to using a lower resolution film scanner. Do you guys have any suggestions?

I was just wondering what's the best means of going about it.
