The Energizer Bunny has alkaline batteries, making the contents of them caustic. And corrosive.
The Energizer Bunny has alkaline batteries, making the contents of them caustic. And corrosive.
Kirk - www.keyesphoto.com
Not wishing to interfere with the p****** contest here, but I am curious. Why do folks avoid Kodak's indicator stop? It's the only thing available off the shelf here and there's a finite amount of energy I'm willing to devote to stop bath unless I'm missing something.
I use Kodak Indicator Stop. I also have a bottle of 28% acetic. I use them for making a pH buffered stop bath along with sodium acetate, as described in the Film Developing Cookbook by Anchell and Troop. The advantage of a pH buffered stop bath is it can have high acidity but not a low pH. This allows it to stop development very quickly, it lasts a long time, and it reduces the amount of gelatin swell while the film is in the stop bath.
For papers, I got tired of the smell of acetic acid in the open trays, so I use citric acid stop.
Kirk - www.keyesphoto.com
It's not necessary to use an acid stop bath for film. In fact, a water stop is probably recommended more often than a acid stop. Agitate for 30 seconds before discarding and adding the fix is the way I learned.
I was using an acid stop for B&W paper but after switching to Photographer's Formulary TR-4 fix, I now use a water stop for B&W paper as well with frequest changes of water. Note, however, that according to the label a stop with TF-4 is not necessary: You can go from the developer directly to the fix.
I now use an acid stop only for C-41 film and RA-4 paper processing in a Jobo processor.
There's a lot of things that aren't "necessary", but are still useful.
I prefer to use stop baths as they do have benefits, like stopping development, whereas water "stop" just slows down development via dilution...
But to each his own.
Kirk - www.keyesphoto.com
True. That's why I use a stop bath when processing color with the Jobo. For example, an 8x10 print in the Jobo requires just 61ml of chemistry - too small an amount to not use an acid stop. Before switching to the Photographer's Formulary Fix I used Kodak Indicator stop bath for B&W paper printing but have always used water for film. But now that it has been brought up and since I have an empty and unused 1/2 gallon container, I'll mix up a stop bath of 1.53% Glacial for film and see if there is any noticable difference.
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