I've been advised that a good thing to do if I'm toning some FB stuff is to fix it in non-hardening fixer. Is this true? Why? And can anyone recommend a good brand if that's what I need?
I'm going to be toning some stuff in blue, some in sepia, both will be done with Speedibrew so I'll be bleaching first.
I've been advised that a good thing to do if I'm toning some FB stuff is to fix it in non-hardening fixer. Is this true? Why? And can anyone recommend a good brand if that's what I need?
I'm going to be toning some stuff in blue, some in sepia, both will be done with Speedibrew so I'll be bleaching first.
Zonal Pro rapid fixer without the hardener also works well, if you prefer an acid fixer.
TF-4 works very well, in this respect, and may cut your toning times substantially. With Azo I toned in KRST 1:15 for 3 min. for maximum density after non-hardening acid fixer, but I had to cut that to 1 min. after TF-4. For a little more control, I've switched to KRST 1:20, and I tone for 1.5 min. Other alkaline fixers should give similar results.
TF-4 works very well, in this respect, and may cut your toning times substantially. With Azo I toned in KRST 1:15 for 3 min. for maximum density after non-hardening acid fixer, but I had to cut that to 1 min. after TF-4. For a little more control, I've switched to KRST 1:20, and I tone for 1.5 min. Other alkaline fixers should give similar results.
An excellent suggestion David. I'd forgotten about TF-4, as I've switched over to the Arista powder for everything now, but when I was using TF-4 toning was a breeze with both KRST and Kodak Brown Toner.
Not adding hardener also makes it a little easier for prints to take Spotone. I use Kodak Rapid Fix and leave out the hardener. I use two baths, 30 seconds in each and I dump the first bath often.
In any case, the only real reason to use hardener would be if you were using a rotary drum type print washer, and had to worry about prints being scratched when wet.
Zonal Pro rapid fixer without the hardener also works well, if you prefer an acid fixer.
TF-4 works very well, in this respect, and may cut your toning times substantially. With Azo I toned in KRST 1:15 for 3 min. for maximum density after non-hardening acid fixer, but I had to cut that to 1 min. after TF-4. For a little more control, I've switched to KRST 1:20, and I tone for 1.5 min. Other alkaline fixers should give similar results.
For info on TF-4 check out www.photoformulary.com, and if you search for info here on "alkaline fixers" you'll turn up more info. There are other alkaline fixers you can brew yourself in Anchell's _Darkroom Cookbook_, if you can't get TF-4 in London (maybe Silverprint has it), since it's a liquid concentrate and could be costly to ship from the U.S. Ole also has an alkaline fixer formula in the chemical recipes section on APUG.
Like most people I suspect, I started using TF-4 with PMK pyro (after using acid fixers for 20-odd years), since acid fixers can reduce pyro stain. Then I discovered that I liked it for everything. The odor (a light ammonia smell) is not as bad as Kodak Rapid Fixer or most other rapid fixers, it's really fast acting, seems to last a long time, doesn't require a hypo clearing agent, wash times are shorter than with an acid fixer if a hypo clearing agent is not used, because it is alkaline cross contamination of developer is less of a problem (though of course one should always do one's best to avoid this), and it reduces toning times.
Thanks again David. I've decided it's time to take my picture-taking up a notch or two and I've realized that if I want to do that I've got to start learning about chemistry side of photography. Don't be surprised if you see a few more questions from me in this section.