Is There a DIY Home Brew B&W Film Fixer
2014年7月31日 · The crazy part is, that rapid fixer is cheaper than the Ammonium Thiosulfate concentrate for self mixing it! Unless you have special goals (like making a fixer that's twice as fast as rapid fixer), or enjoy messing around with raw chemicals, there is …
Safe disposal of chemistry (especially fixer)
2013年6月2日 · But, my U.S. darkroom activity only produces 5-10 gallons of used fixer a year; not that much. Lastly, you can collect your fixer and take it to the hazmat facility in your area. I used to do this, but became convinced that the fixer would never make it to silver recovery due to the ineptness of the hazmat facility personnel.
Sodium Thiosulfate fixer | Photrio.com Photography Forums
2009年4月18日 · Kodak Flexicolor fixer, which is a rapid fixer intended for C-41 film but that works fine with B&W film, costs about $0.05/roll. TF-4 costs $0.12/roll, if my calculations are correct -- a little pricey by rapid fixer standards, but it works very quickly.
Silver recovery from used fixer | Photrio.com Photography Forums
2021年2月15日 · print and film fixers rather than disposing used silver-loaded chemicals down the drain….. to be ‘lost forever” All used B/W film and Print fixer is NOT going into the municipal sewer system or perhaps an out-of-town septic tank (where it is ‘lost forever) I have a large glass carboy into which I ‘dump’ ALL my well used fixer..
Anyone know what's worng with my film? - photrio.com
2024年9月12日 · Fixer contamination I'd expect to show up as one of the following: 1: Slight brown discoloration of the entire film due to sulfur compounds indiscriminately forming silver sulfide. 2: Slightly reduced overall gamma - which would go unnoticed unless the contamination is …
A Neutral Quick Fixer Formula | Photrio.com Photography Forums
2018年1月24日 · Foma 100 cleared in 45 seconds (with agitation), while Ilford Delta 400 and Kodak Tmax 400 both required four full minutes to clear in the fixer as made above. Tmax 400 film still retained a tan-colored tint of the base, which did not completely go away after a several minute wash, while initial purple tint of Delta base was mostly washed away.
How long to keep fixer? | Photrio.com Photography Forums
2013年6月17日 · If you're using standard or rapid acidic fixer (sodium or ammonium thiosulfate), you'll notice that when first mixed, it has a sharp, acrid smell. With use, it'll gradually start to smell more sulfurous. As for capacity, a commonly used fixer, Ilford Rapid Fixer, has a listed capacity of about 24 rolls of 35mm film per liter of working solution.
FIXER - ammonium or sodium thiosulfate? | Photrio.com …
2009年6月3日 · I usually fix for 10 minutes, which is a good long time. So there you have it, any fixer will fix any type of film, except for films developed in pyro, which need an alkaline fix like TF-4. Buy whatever fixer you want, and if you are worried about your negatives with Delta, over fix by several minutes, because a few minutes won't bleach the film
Developing film--fixer remover? | Photrio.com Photography Forums
2009年6月19日 · As I remember, they concluded that the *length* of time the film spent in a rinse bath could be pretty important, since the fixer diffuses towards equilibrium---in theory, IIRC, a single rinse after dumping the fixer was enough to get the residual hypo to archival levels, but the required stand time might be excessive.
Shelf life of mixed fixer? | Photrio.com Photography Forums
2021年4月17日 · FWIW, I've kept fixer concentrate for a few months longer than Ilford recommends and had it perform just fine. The tell-tale signs that fixer concentrate has gone bad is a sulfurous smell and precipitated yellow or white flakes/solids that may be suspended in solution. This means the fixer is "sulfuring out" and should be discarded. Hope this ...