Working in the wet darkroom processing both film and paper is nothing more than simple lab work. You are a lab technician in charge of performing a series of processes. These processes must be done exactly the same way each and every time in order to guarantee consistent results. Any variation in process or mixtures will affect the end result.
You have to keep track of exactly how you process both film and paper. Consistency is of paramount importance when processing film. You only have one chance with your film and if you make a mistake there is no going back. If you happen to make a mistake when printing you can always start again. You only lose a sheet of paper. With the film, you loose the image forever.
It is imperative that you do everything exactly the same every time. Any variation, even down to the tray sizes and volume of chemical can affect the end result. Film processing is not hard, but you have to do everything exactly the same every time. It is also worth mentioning that you have to be scrupulously clean. Contamination of any of the processing chemicals can cause disastrous results. One thing that is easily overlooked is mixing up the stock solution tops when using developers that have more than one part. Only remove one cap at a time and replace each before opening the next. Also, mark each cap and never mix them up.
Good darkroom habits begin with keeping notes. I keep a three ring binder containing notes on all of the procedures that I use in the darkroom. I have notes for each film size that includes the size of the trays, chemical mixtures, volumes of chemicals, and number of sheets of film for each processing run. When I begin a film processing session, the first thing I do is grab my darkroom notes. I make sure that I do the exact same thing every film run.
Even the printing process needs to have order and a plan to ensure you do not end up chasing your tail. My darkroom notes also contain information that pertains to printing. Though not as critical as film, I want to be sure I do things in an orderly and repeatable manner. I also want to be sure I mix all of my chemicals correctly, so everything is written down.
One of my favorite darkroom stories comes from Fred Picker. In his information packed little book titled “ZONE VI WORKSHOP” he describes his early days trying to get a handle on the process of B&W printing. If you have a copy of this gem of a book, turn to page 40 and read the chapter titled “THE CUSTOM LAB.” This is a really good account of how NOT to print.
I keep notes on most everything I do in the darkroom. There are times when I cannot remember exactly how I did something. With my notes there is no question as to how to remain consistent. As Fred Picker used to say, “DIFFERENT IS NOT THE SAME!”
JB