Might add my two cents. I've been processing my cinema film in the same Cinestill CS41 chemistry (dev+blix) that I use for my regular color negatives. Everyone says that if you do process cinema film in C41 chemistry, you should use a separate batch of developer just for the cinema film, because even if an alkaline bath is used beforehand to remove the remjet, there will always still be some residue left on the film that could contaminate the developer. I've been doing something that might not be for the faint of heart: after a baking soda bath to remove most of the remjet, I go into my completely dark and windowless bathroom, take the film out of the developing tank, put it in a basin of warm water, use a set of sponges to wipe the entire length of the film five times, and then spool the film back into the developing tank—all in the dark of course. Five was the the magic number I settled on after experimenting, to ensure that the remjet is indeed fully removed. Since I began doing this, I've never had a problem with remjet residue in the developer, the film always ends up completely clean, and I've never scratched the emulsion—this might just be good luck, or maybe it's because I've always been extra careful. The only problem is I often have to wash my bathroom floor afterward because there will be black spots all over the place, which sort of confirms that what I've been doing in the dark is indeed working.
Also, I'd really like to mix my own b&w developer, since I already mix all the other baths by myself, but metol is basically impossible to find in the chemistry shops here in Taiwan. Of course there's caffenol…
Thanks for your thoughts and comments.
You're not the first person to recommend the Cinestill kit, but I'm also stubborn and a masochist. As I mentioned, I'm leary of Blix chemistry even though I've used it before, mostly because I know that chemically bleaching and fixing are different enough processes that you need pretty tight control of your chemistry for both to work well at the same time.
I think with ECN-2, I'm motivated to go the DIY route as much as anything because Kodak has actually published an official recipe and there's no reverse engineering.
I'm fortunate as far as chemicals that-with full blessing-I can order through work(and charge to my personal account) and have the "real" chemical companies at hand. I cross shop with Artcraft and Formulary, but the most recently purchased bottle of Metol(100g) actually came out cheaper from Fisher than from Artcraft. It was close, but some other things I needed pushed Fisher over the edge.
I was actually a bit surprised to find that metol was as inexpensive as it was given that it's definitely venturing more into photography-specific chemistry. That's NOT the case for hydroquinone, which has a ton of uses outside photo developing(and was super cheap from Fisher). It actually was the case for phenidone also.
I did just have CD3 arrive from Artcraft chemicals today. I did track it down at some other suppliers(CAS 24567-76-8 if anyone wants an easy route to try for yourself) but the price I was seeing was like $80-something for 10g. That's compared to $30 for 100g from Artcraft.
I've actually not ever dealt with Remjet, so I appreciate your tips. Unfortunately for now, I don't have a true darkroom, so I'm going to be dealing with it the best I can. My initial plan is just to do a couple of rinses with Kodaks prescribed prewash+agitation(offhand I think it's sodium hydroxide and borax, but don't hold me to that). I may regret it, but I've had enough issues with film transport in my first 65mm roll that it's pretty firmly in the "test" category for me anyway
I'll certainly report here about my results. While I'm at it, I'm waiting for a wet scan mount kit for my Coolscan 9000, which will let me scan 65/70mm film. I've done wet scanning on my V700 before and have been really pleased, so I'm SUPER excited that this option is out there for the 8000/9000. I'll probably end up dry mounting most of the time, but the key with the wet mount adapter is it lets you mount film wider than a standard 120 adapter(although the CCD is still only ~60mm wide, so it won't get more information, just let you mount wider film).