Originally posted by UncleVanya What is the circuit board function in the new rig? Also maybe a few more details on what you did to make it work?
It turns out that you need to keep the circuit board attached to make the LED light source work, so it's there for no other reason than that. Then you just need to connect a 5 volt USB supply to the B type socket that you can see in the photo and that will illuminate the LED light table. Superglue the ring from a cheap deglassed filter to the top to give the lens that you want to use for the job something to screw on to, and you're done -- although it needs to be a lens with a non rotating front element. I'll dig out some sample scans with that particular rig and post them when I can, although it might be tomorrow morning UK time.
Edit: I should add that the LED failed after a while, so I'm suggesting this as a fun thing that you can do without spending too much money rather than being a really practical long term DSLR scanning solution.
Last edited by Dartmoor Dave; 10-22-2021 at 11:09 AM.