I have some expired 50D Fujichrome colour trancparency film which is out of date and has colour casts, so it can't be used for making slides.

Can I use the film in my camera as B&W film and somehow process the film in B&W chemistry to get B&W negatives. Has anyone done this??

How long would I develop in say D76 to get negs off the Fuji 50D transparency film??

I know this all sounds silly maybe but I have so much of this film it seems a pity to waste the film if I can use it for basic tests, or where the imaage is not so important. What sort of results might I get?? I realise the colour couplers won't work within the film, but the suilver should still develop??

Anyone tried any of this sort of thing??? Thanks David Strachan

-- david strachan (strachan@cww.octec.org.au), June 21, 1999

Answers

I have a half answer. I exposed and developed some color print film in B&W chemistry. I indeed got B&W negatives. I can't remember what exposure index I used but I think I tried + and - one stop. I never tried to print them though. I think I was trying to get some goofy colors and was disappointed there weren't any. That was before I understood color couplers and silver bleach.

Cheers,

-- Duane Kucheran (dkucheran@creo.com), June 21, 1999.

Most films are inherently B&W, in that they have silver halides that are converted to silver with conventional B&W chemistry. I haven't tried that particular film, but it would probably work.

-- Alan Gibson (Alan.Gibson@technologist.com), June 23, 1999.