- Jun 11, 2010
- Multi Format
FWIW another up-vote for Eco-Pro Neutral Fixer. Lasts a long time, gives my films (I don't have a darkroom so no printing) plenty of snap, even though I mostly shoot old and expired.
I use their Stop, Fixer, and Hypo wash aid. These all work as advertised and are, presumably, less harmful to the environment. I do not use lots of T-Grain films so I have no opinion as to fixer impacts.
The eco natural fixer clears a lot of the dye and it needs a lot of washing. True.As a purely technical matter hypo wash is more useful for washing fiber-based papers than films. (I think that the Technical Data Sheet provided by Eco-Pro might say something every similar ....)
I use hypo wash when processing TMax films because I find that it clears the anti-halation dye (that pinkish cast) from the film base more efficiently than the shorter wash cycles that most are using in these times of enhanced environmental awareness--but this is anecdotal as I've done no actual testing to confirm this.
The eco natural fixer clears a lot of the dye and it needs a lot of washing. True.
You think hypo can help with tax films washing?
In my case, I actually use a teaspoon of the HCA powder in a litre of water each time I develop film. That litre can be re-used several times within a few hours, but it does not last longer.
I would expect that the Eco Hypo wash would have similar longevity.
This is the only powder photo-chemical that I would consider using that way, because it is mostly sodium sulfite, and it won't really suffer if the relative proportions of the other components vary a bit from session to session.
Some people just use bulk sodium sulfite the way I use the HCA. That is easy and cheap, but it is a bit dependent on pH.
By the way, I can virtually guarantee that the Eco Pro stuff has the same very tiny environmental effect as the Kodak stuff.
Hypo Clearing Agent - not "hypo", because that is an obsolete nick-name for fixer - assists with washing both paper and film. It speeds the process and reduces the amount of water needed.
As an example, Kodak's recommendation for films was that one should wash 5 minutes after using Hypo Clearing Agent OR 20 to 30 minutes without using Hypo Clearing Agent.
the hypo wash doesnt last long at all. It has no storage life. Use it up, throw it out.
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