TF-5 is not alkaline.
Type: Posts; User: Michael R; Keyword(s):
TF-5 is not alkaline.
The developing agents are CD32 and HQMS. The alkali is sodium carbonate.
Interesting. That seems like a strange recommendation and formulation. The carbonate of course is alkaline. Then when you add the bisulfite (acidic sulfite) the solution will become less alkaline,...
Marketing.
It’s hard to know exactly what John W. intended although I don’t remember his normal instructions for his pyro developers factoring in a carbonate pre-wash. To be honest it sounds a little strange,...
That’s great news!
One thing - if by pre-wash you mean before the developer, don’t do that unless you then give the film a thorough plain water wash before the developer. You don’t want any...
Yes that’s fine. Give the film a few minutes of soak in plain water first to get it throughly re-wet and then do the sulfite bath. 10 minutes in the sulfite with a little agitation here and there is...
The pH of the fixer shouldn’t normally make a big difference, but in some cases residual dyes that have not come out earlier in the process might come out somewhat faster in an alkaline fix, and that...
I don’t know… it seems less “elitist” than it used to be. Of course there also used to be a lot more active members so maybe it just seems less elitist now because there is so little going on.
Is this a current product? I couldn’t find much more information than the Agfa PDF and some relatively uninformative SDSs. That it comes in liquid concentrate form to be diluted suggests it is a...
247959
TMY-2/Ilford MG Classic
I think this is correct - ie gold toning on its own will tend to give blue-black tones, and often the blue-black shift will be more pronounced on a warm tone paper than a cold or neutral tone paper....
I think you are right. My guess is the extra low EIs people assign to TXP are primarily a Zone System thing as TXP and HC-110 were a popular combo in the 1970s-80s. Given the shape of TXP’s curve,...
The Tri-X 320 characteristic curve is highly “upswept” with a relatively long toe and very high highlight contrast. It’s a fairly unique film in its tone reproduction compared with pretty much...
Sodium chloride would increase solvent effect - that's what Microdol/Perceptol use in addition to sulfite.
In any case, these divided metol-sulfite developers will generally all do the same thing...
An issue above is the difference in contrast, which makes evaluating graininess and perceived sharpness problematic. The image on the right looks more contrasty to me but not sharper. Although...
You’re probably thinking of Sprint: 247745
Their fixer is great and they also make the best stop bath in the business (not that stop bath is anything to be pondered over but just saying).
It’s not necessarily only photography, other artforms too. They’re different than sports because those are generally shared activities. I think it’s less about wanting to sell things per se and more...
Make huge prints I guess.
It looks to me like there is some optical diffusion softening everything, so nothing to do with exposure/processing as far as I can see. One way to achieve this is with some diffusion at the...
I wonder though if it’s a fake image taken with a fake camera do the two fakes make a real? I think so.
Sprint is good. It’s too bad you don’t see it mentioned much. Maybe people associate it with schools or whatever and assume it isn’t for the serious crowd. Anyhow I’d go with that or Ilford before...
That’s true. Drew made his out of some sort of laminated sequoia tree.
TF-4 is alkaline. TF-5 is neutral (actually slightly acidic, as are most neutral fixers).
They’re fine, just not necessary. The pyro stain business is nonsense. That’s just Troop/Cookbook...
Yeah the slippery feel (vs squeaky) combined with the ammonia odour mean it has become alkaline. The pH of TF-5 should normally be around 6.5 and it should have low odour.
All other things being...
There’s no major reason to use TF-5 over standard rapid fixers such as Kodak, Ilford etc. The advantages of a neutral pH rapid fixer (Ilford and Kodak are mildly acidic) such as TF-5 are longer shelf...
It’s not easy out there. Every time the film price discussion comes up my mind goes to discussions I’ve had with Mark Citret over the years. A top tier artist in B&W photography with a long,...
We need George Tice to stay around. He’s probably one of the few large volume users of 8x10 Kodak film (though it was always TXP unless he has switched now), unless he’s moved away from Kodak now. I...
Digital has changed what I consider to be possible in the darkroom by adding some digital to the mix. I have a lot of ideas for special inkjet dodge/burn masks and it is kind of exciting to me....
Plain white vinegar diluted 1:1 with water makes a working strength stop bath.
Kodak, Ilford and Moersch selenium toners are functionally identical.
Ilford makes sets of contrast filters for...
I know we can do it. Go team.:D
Back to OP’s topic…https://m.youtube.com/watch?v=YWywb9i-z7Y&pp=ygUXcHVzaCBhbmQgcHVsbCBqdWx5IHRhbGs%3D
Didn’t he have that Cadillac by the end?
Nope it’s based on all my years looking at photographs - including on here, where the best stuff is in the non-large format gallery threads. But it’s true short days are my favourite.
Not only that but I still think the vast majority of people will make better photographs with smaller than larger formats.
Who looks at prints in person anymore? That’s 20th century stuff.
If you want to evaluate stain visually it is best to use transmitted light through dense parts of the negative. Remember that stain is proportional to silver density so unless you’re getting a lot of...
Semi-stand is good for the calf muscles, but only if you extreme minimal agitate.
I have to say (I don’t actually have to but anyway) the questions OP posts don’t make much sense. Everyone keeps suggesting starting with some basics but that seems to be continually ignored,...
-Exposure latitude is has no strict/standard definition
-People standardize on different contrast/gradient preferences
-Different developers, agitation methods, temperatures
-Error/slop