How I have been developing my expired Kodak Ektachrome Slide films. I have 35mm, 120, and 4×5. Here’s some 120.
Mostly E3/E4 type films – EPB, EHB, EP
Development – All solutions below 72°F
– rinse, fill and dump tank twice (optional)
– C41 dev, 10 min, invert x2 every min
My understanding is this is a process to do until completion, so timing not super critical.
– wash, fill and dump 2-5 times (helps preserve blix)
– C41 Blix/Fix, 6 min or as recommended by packaging, invert x2 every min
– wash, fill and dump x5
– stabilizer, as recommended by packaging
I use a stainless steel tank most of the time. sometimes a Paterson plastic tank. I use a nikkor tank for 4×5.
Be very careful handling the wet film, the emulsion is soft and easily damaged. This is also why development has to happen at a low temperature, the emulsion will dissolve/fall off at higher temperatures (and other interesting “artistic” things can happen). Experimenting with a hardener might be smart (chrome Alum?).
I place my solutions in a bath at 68-70°F. I also prepare a large jug of water at 72°F to use for rinse water.
I carefully hang my negatives to dry, sometimes I use a hair dryer to speed things along.
Negatives will be foggy when wet. They will have a blue base.
Scanning
I scan my images. Or rather I digitize my images using a light table and a DSLR. I use a Gepe light pad. It takes a little bit to dial in an exposure method, some rolls I don’t need to make any adjustments, others I have to over or under expose while digitizing.
In Lightroom I will generally manually adjust curves (RGB channels) to balance the color.
You can use Photoshop as well simply with the Auto color adjustment. Or, for key images, I might use 4 Adjustment Curve layers: one for Dark Point, one for White Point, one for Contrast, and one for Color Balance
I can provide copies of articles / tips I have read regarding scanning/color if interested.
And thats that, let me know what you have found or contact me with any questions!
A note on exposure
START AT BOX SPEED! https://silvergrainclassics.com/en/2020/08/how-to-shooting-expired-film/
for 5071: Try Iso 10 https://branden.me/blog/testingslideduplicatingfilm/
In and Around the Life 