Nikon bellows works quite well for 35mm. Works for 1:1 or higher magnification and stitching for film or slide. Bellows keeps out stray light. Lens is a Rodenstock 75mm f/4 APO Rodagon D 1x copy lens.
This is a PB-4 with tilt/shift (which is overkill). Similar PB-5 without this feature would work just as well for camera scanning.
Holder is PS-4 which hold slides or film. Set up here for 1:1 with a full-frame Sony A7. This holder has shifts left/right up/down so I can use higher magnification, make four captures, and stitch. Nikon also made a PS-5 without the shifts. Place flash or any light behind the built-in diffuser.
(Mirrorless, so technically not DSLR.)
