Back in February 2009 I posted an entry titled “WHO USES PYRO?” and ended it with this statement, “I have about reached a conclusion as to which formula best suits what we do. . . and. . . I may just write about what I found at a later date. . .”
One thing I can say for certain is that for us, and let me be very clear about this, I repeat, FOR US and the way we work, most any staining developer out performs any non-staining developer we have used. It was just a matter of finding the right developer that suited us and one that would allow us to produce prints that have the presence and feel that best suits our vision.
After working with several of the more popular staining film developer formulas we have finally chosen our favorite. There was a lot of research and comparisons, followed up with field testing in order to ascertain what best fit our needs. I defined the main criteria and judged each developer on how well each performed in each area. Here is a short list of the main points:
• the formula had to be published
• we considered how we work
• what we expect from the negative and developer combination
• ease of use
• consistency of the developed film
• stability of the developer formula
• stain color
• general stain and stain density
• the look, feel, and overall print quality
• last, but not least, the cost
I prefer to always be able to mix my own chemicals from scratch. This became my first issue, since I do not want to depend on the availability of the developer from an outside source. I am a strong believer in vertical integration. Also, if I want, I can modify the formula, and I always know who to blame if something goes wrong.
One thing I have learned is that Pyrogallol is cranky. Nearly all of the formulas we tried that were based on Pyrogallol, at one time or another, under certain circumstances, gave inconsistent and sometimes unpredictable results. The problems could have been caused by any number of variables. We tray process all sheet film using the shuffle method. Some of the Pyrogallol formulas showed signs of aerial oxidation in the tray at the end of the developing cycle, while others did not. The biggest problem was that every Pyrogallol formula we tried, performed erratically and at one time or another, produced an occasional unevenly developed negative. One formula was especially sensitive to wash time. The longer you left the film in the washer, the more the general stain increased and the film went from a near neutral color to deep green. Never did understand what caused that. I am sure it was something that I did, but I do not like to have to deal with something that is that sensitive to slight variations of process.
One thing I did learn was that Pyrocatechin is a much more stable and user friendly developing agent. The Pyrocatechin formulas showed little to no aerial oxidation in the tray after a processing run. No matter what I did, the negatives have not shown any uneven development or any other problems. I prefer to have the confidence that even if something is a little different during processing, it will not cause inconsistent results with the finished negative. In other words, I like to have a little wiggle room.
One other quick observation has to do with the general stain color. I know there has been a lot of discussion about the stain color and again this is what we have found to work best for us. Through our experimentation we quickly learned that green negatives do not work well for us. We print on numerous different papers, and use both graded and variable contrast materials. There is no one magic paper! The right paper is the one that works for any particular negative you are printing. We have found, that for us, the more neutral to brown stained negatives work the best. That is just us. . . if you find otherwise, then use what works for you.
With all of that behind us and a notebook full of test data, I can say it is time to stop the experimenting and get on with what is important, creating photographs. We have now chosen our favorite standard film developer. Pyrocat HD by Sandy King has proven to be the best choice for the way we work. What else can I say. It works. . . works consistently. . . and meets all of our expectations.
I would like to thank Sandy King for all of the research and work he has put into this formula. If you are not familiar with Pyro developers and Pyrocat HD, click HERE to learn more.