Links mentioned in the video
Redscale film technique: what happens when you load film backwards
Film data index, includes notch codes
Redscale film technique: what happens when you load film backwards
Film data index, includes notch codes
Check out Eben Ostby‘s plans for a 4×5 large format sheet film developing tube. View a larger, more legible version of the plans and construction notes on the photo’s page on Flickr.