Having totally failed to find anyone to process this film commercially of the 70mm (Perf type II) 50 exposure, 4.6metre/15 foot lengths of Rollei 400S black and white film, it looks like I may have to go back to processing it myself. Unless of course, anyone can suggest anyone who would be prepared to process this film (I can supply the reel). John Salim can process E6 film but nobody I can find, now sells E6 70mm Perf.Type II film. I have one 70mm cassette of very elderly Ektachrome 64 and that I suspect is "it".
I sold/gave away all my darkroom equipment about 30 years ago, when I became sensitised to hydroquinone, through being careless not wearing gloves. I will therefore be processing in Kodak XTOL. I have found someone (Nigel Hewes) who can make me a 70mm x 5M stainless steel reel but it is large at 78mm high and 170mm in diameter with little to no central hole. A friend in the USA has an old Honeywell/Nikkor tank that will take this reel but is about as simple as a tank gets, being just an empty stainless steel cylinder with a push on tight fitting cylindrical lid. There is nothing sophisticated like a light trap filling and emptying port. I would probably get a filling tube brazed on with a double U bend in it, which could be closed with a rubber bung. I cannot find any other tank which would take the Hewes reel, again unless of course, anyone knows different. My water in France, where I will be doing the developing, is very hard. I am not sure this matters for the stop bath but for the final wash, I will use de-ionised water.
Having finally managed after 10 years to find a working Graflex Combat Graphic 70mm giant rangefinder camera (the complete KS-6 kit with all three lenses and flash), it would be disappointing not to be able to process the film.
Wilson