Compact, all-in-one digitizer for 35mm film, made especially for the Canon EF 40mm f/2.8 pancake lens with a 31mm extension tube, which will work for a full frame camera. Smaller sensor sizes and other lenses with 52mm filter thread might also work, but the required extension tube size may differ.

For the film top and the film bottom, ironing mode is recommended in order to make the film path as smooth as possible to avoid scratching the film. Film top and film bottom are glued together at the vertical side section where the two parts are in contact with each other. No glue is allowed on any part touching the film surface.

The complete film path assembly is then attached to the mid section. Push the parts together with one side first while twisting a bit and they should fit together nicely. You can decide whether to use a bit of glue to attach them more firmly or rely on friction to hold them together.

Mount the lens with a suitable extension tube (31mm for the EF 40mm f/2.8 on full frame) and attach the base part to your lense´s 52mm filter thread. Push the mid section with the film path assembly onto the base part, put your camera on a tripod, point it towards a suitable light source, insert a piece of film and determine the correct distance at which the image on the negative wil fill your view and can be properly focused. Pay attention that the horizontal alignment is accurate. Also make sure your sharpest focus is somewhere in the middle, leaving free movement in both directions.

You now have two options to secure this position. You can either use a few drops of glue between inner and outer tube to prevent unwanted movement or you can put a layer or two of painter´s tape around the base tube, creating a layer inbetween base tube and mid section providing enough friction to maintain their position. If you go for the glue option, you should choose a slow glue, which will leave you enough time to determine the best possible position before letting it sit until dry. Don´t use superglue, you won´t have enough time to adjust it propery. Don´t overdo it, a few drops will be enough as you only need to prevent unwanted movement.

Another top section for 35mm slides is currently under preparation and will be added shortly.

Recommended print settings:

• Supports: no
• Infill: 35%
• Film top and film bottom: Use ironing mode
• Mid section: Fuzzy skin mode (optional), outside only
• Layer height: all parts 0.2mm, except base part 0.1 mm
• Orientation: Flattest side on build plate (mid section must be flipped 180 degrees before printing)

Suitable extension tubes for Canon EF (works with 40mm f/2.8 pancake on full frame):
https://s.click.aliexpress.com/e/_DBfNQbB

The last two images are test scans of 40 year old Ektachrome 64, which I forgot to dust off - sorry!

THIS ITEM HAS BEEN TESTED AND FOUND FULLY FUNCTIONAL. CREATING AND FINALIZING IT HAS TAKEN HOURS OF DESIGNING, MODIFICATIONS AND SEVERAL TEST PRINTS TO GET EVERYTHING RIGHT. PLEASE CONSIDER LEAVING A TIP VIA PAYPAL IF YOU FIND THIS ITEM USEFUL: e-mat-paypal(a)netti.fi