I downloaded this write up http://pyrocat-hd.com/html/TwoBathPyrocat.html and was going to order from this site http://stores.photoformulary.com/pyr...dry-or-liquid/
I have many black and white negatives from my trip this weekend that I intentionally exposed for the darkest part of the scene at Toroweep Grand Canyon. Lot's of clouds, very bright in spots and not till the next day did I use a Grand ND filter. Anyway, I am interested in the idea of being able to pull out the darkest shadow detail and not blow out the highlights.
Questions are:
1. Do I have the right site and chemicals to do this? If not, where should I get the right chemicals?
2. I am using Tmax100, what exactly are the development times? Should I increase times in A and B or decrease? What would be a rule of thumb? Or is just develop using the listed times in the two bath write up?
3. Mixing ratios are 1 part A to 20 parts water and 1 part B to 20 parts water. How many sheets of 4x5 can you get out of this if I mix a 500 ml solution? 4, 8 or 12?
4. According to the 2 bath write up you rinse after each stage for 15 seconds. At the end you run thru your typical stop bath, fixer, etc as normal.
I am wanting to try this because I want to see if this process is will do what it is supposed to do in pulling out shadows at the same time saving the highlights.
I know I am probably not understanding this fully, but I really want this to work. It makes metering much easier in extreme situations of bright back lit clouds and deep, dark shadows like those you run into at the Grand Canyon and in back lit trees, like Aspens at sunset/sunrise.
Also, is there a similar process that will work with color negatives?
Lastly, could I achieve the same result by pushing or pulling during development? Any links/guidance is helpful as pushing and pulling film is my next lesson to learn. Would you say expose for the shadows and then pull the negative a certain number of stops or expose for the highlights and then push the film?
Sorry for such a long post. Need to order chemicals so I can try the 2 bath Pyrocat develpment.
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