35mm film scanning holder for JJC FDA-S1

This is a remix of a great film scanning holder https://www.thingiverse.com/thing:3985120
but adapted for using with JJC FDA-S1 Film Digitizing Adapter and LED Light Set. https://www.jjc.cc/index/goods/detail.html?id=1024

upd. Looks like they updated the JJC FDA-S1 device, added a diffuser glass to the camera side, because of that this model is no longer fully compatible with it, unfortunately. If you still want to use it, you need to find a way to mount it.

Stock film holder makes shadows on the edges of the pictures, not recommending to use it.
After printing I recommend to spray a bit of black matte paint on the inside for decreasing unwanted light reflections.

Printed with dark ABS plastic.

I use it with Nikon D5100, AF Micro Nikkor 55mm 1:2.8
and edit RAW files with Darktable software, using Negadoctor plugin.