Here’s my updated setup for 2025, which is pretty much fully designed and custom built by me. The copy stand features a 8040 C-Beam and lead screw height adjustment, all mounted to a piece or thick furniture board. I use a mirror tile from IKEA as a way to confirm alignment, but there is no need to adjust anything as the copy stand and camera head hold everything perfectly straight out of the gate. The film holder is a motorised version of the toneCarrier 35 mm.
For the light source, I’ve now upgraded to a narrowband RGB+WW light source of my own design - this uses 665 nm red, 530 nm green and 450 nm blue light and seems to give pretty good colour separation in most cases. I can adjust the intensity of each channel separately and save presets for specific films or scan settings.