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zx9
old hand

Reged: 22/06/2007
Posts: 1041
Loc: London

Re: After developing, pink die came off the film ?

05/03/2008 14:01

No it was Agfa APX 400 and TMAX, it's the anti-halation dye added to the back of the film intended to increase contrast by stopping light been reflected back from / by the substrate. In some films it forms a dark red cloud when combined with the thiosulphate in the fixer. ( IIRC it's a long time since I did photoscience ) Sorry my first reply was not so informative but I have been pondering it all morning.

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ZX9 (Keith)

My Flickr Pictures

Post Extras

Entire topic
Subject	Posted by	Posted on
After developing, pink die came off the film ?	StevenJ	04/03/2008 21:49
Re: After developing, pink die came off the film ?	Terrywoodenpic	25/05/2008 21:26
Re: After developing, pink die came off the film ?	zx9	05/03/2008 09:16
Re: After developing, pink die came off the film ?	StevenJ	05/03/2008 11:31
Re: After developing, pink die came off the film ?	zx9	05/03/2008 14:01
Re: After developing, pink die came off the film ?	beejaybee	05/03/2008 14:27
Re: After developing, pink die came off the film ?	zx9	05/03/2008 16:42
Re: After developing, pink die came off the film ?	StevenJ	05/03/2008 19:34
Re: After developing, pink die came off the film ?	taxor	06/03/2008 13:21
Re: After developing, pink die came off the film ?	John_K	10/03/2008 11:03
Re: After developing, pink die came off the film ?	Benchmark	17/03/2008 11:19
Re: After developing, pink die came off the film ?	apochromatic	06/04/2008 14:47
Re: After developing, pink die came off the film ?	DaveS	15/05/2008 09:41
Re: After developing, pink die came off the film ?	PeteE	05/03/2008 14:50

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