Photographis Posted February 12, 2009 Report Share Posted February 12, 2009 Well, here's one for the forum. Just had an enquiry on E6 processing, which we do not do, although cross-processed several with our c41. It transpired that this chap has several rolls (120 and 35mm) of not E6, but E4, and was wondering about cross-processing. Now, not wishing to insult or upset anyone, but this was before my time, does anyone have any idea whether this would work? I have pointed out that as the films are close on thirty (30) years old, any image remaining is likely to be poor, but this chap is adamant that he wants them processed. He has mention the subject matter that is on the film, and it could be quite historicaly important, so I don't want to be responsible for destroying the (if any) latent images remaining. Please, if anyone out there has any advice on this subject (even if 'leave well allone') get back to me asap. Quote Link to comment Share on other sites More sharing options...
Photographis Posted February 12, 2009 Author Report Share Posted February 12, 2009 ok, just ascertained that to process E4 in E6 chemistry the film needs to be 'hardened' or the emulsion falls off. So how is this achieved? would the same 'hardening' process be suitable for cross-processing in C41, or is C41 a no-no from the start? Quote Link to comment Share on other sites More sharing options...
NeilT Posted February 12, 2009 Report Share Posted February 12, 2009 DO NOT PROCESS IT!!!!! The emullsion will shed, and cause all sorts of problems. We used to hand process it (tank) at lower temps but that is going back many many years. There used to be a lab in the UK that could do E4 and C22 Quote Link to comment Share on other sites More sharing options...
kikskiks Posted February 12, 2009 Report Share Posted February 12, 2009 here´s there site. http://www.processc22.co.uk/ Quote Link to comment Share on other sites More sharing options...
NeilT Posted February 12, 2009 Report Share Posted February 12, 2009 Phew, knew that there was one.. A few years back though, this site was on the [slow] side, so may be best to check etc Quote Link to comment Share on other sites More sharing options...
Photographis Posted February 13, 2009 Author Report Share Posted February 13, 2009 Excellent, thank you both. As I said this film is quite valuable and I was not happy to touch it without some expert advice, and these people seem to fit the bill perfectly. I will speak to them later. One or two rolls I can understand being 'forgotten about', but this guy has in excess of 40. Why? If this story develops (oooh) I will update the forum. Thanks again! Reading your post again, Neil, it is the temperature that destroys the emulsion, rather than the chemistry, thus requiring 'hardening' to help prevent sheding at higher process temps. is that correct? Not that I want to do this, but I do like to understand it. As I said, this process was well before my time, my HND barely touched on E6 (but then it was 'Photography and Digital imaging' and not process and finishing). Thanks again. Quote Link to comment Share on other sites More sharing options...
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