Hero! said:
Photo Engineer, is TF4 a brand name? Are you advocating it as the quickest and best of the fixes? Please elaborate.
Thanks!
I neither advocate nor object to any product. I merely state how the product performs. The TF4 meets the advertized specs on the bottle. It is the fastest fix I tested (other than my own) and is the fastest to wash out to archival levels (other than my own - tests still pending).
So, when compared to other fixes, I can say that TF-4 has no hype associated with it and neither does Kodak Rapid Hardening Fix. They perform up to the figures stated on the bottle. Even though the Kodak fix is slower, it meets its stated specs.
OTOH, the Clayton fixes that I tested did not perform up to the standards posted by Lowell Huff, and there were no performance figures on the bottle. Posted information on several sites that sell Clayton gave conflicting information on treatment times and other critical information such as dilution.
TF4 is an improved version of TF3 which is published in Anchell and Troop. It is indeed sold by the Formulary and does live up precisely to its specification.
After many years of R&D in Bleach and Fix chemistry, I believe that I can speak with a certain degree of authority on the subject. Nothing is wrong at all with the Clayton product. It is a fine fix. It is just not a Super Fix. Isn't that what HYPE is all about? Overstatement of the capabilities of a product.
The Clayton fix is an excellent work alike for the Kodak Rapid Liquid Hardneing Fix. No more, and no less. If that is giving you the value you want, then it is a fine product, but if you expect more from it based on some 'hype', it will not deliver.
My tests show that TF4 does deliver what it says on the bottle. It is the quickest fix I tested of all but my own special formulation, and it washed out faster than any but my own formulation.
PE