Some years ago there was a thread about the ECN-2 motion picture film
processing because I bought and I used two Kodak Vision 3 250d 35mm motion
picture film cartridges and I sent them to process to a lab in Buenos
Aires city. ECN-2 and C-41 are pretty similar, however ECN-2 has a step to
remove the remjet antihalation layer from the Vision 3 films type; color
developers are a bit different too, however I read you can use the C-41
processing to process Vision 3 motion picture films if you add the step to
remove the remjet layer; there are kits for the ECN-2 processing at home.
The results were satisfactory to me and I posted some scanned frames to my
Flickr gallery at the time; I used the Rolleiflex 2,8C Xenotar with the
Rolleikin 35mm film adapter to take them. I had forgotten to upload this
one scanned with my former scanner Epson 4490, good scanner too:
https://flic.kr/p/2nFcQpd
Carlos