Water bath

Water bath
Large water filled containers used to maintain processing trays, tanks or chemicals at the correct temperature.
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brought to the correct processing temperature in a water bath (fig. 10-18). A clean, dry area should be provided on the work counter for loading the film onto the reels. The following steps are used to process roll film in small tanks: 1.

The three tanks (Developer, Stop bath, and Fixer) are placed in a tempered water bath. An inexpensive plastic dishwashing tub seems to work very well for this purpose. Each tank contains one liter of solution.

Leave the paper negative in the water bath
Remove both pieces from the water bath
Lay the unexposed paper down with the emulsion side facing up ...

-Pre-soak - preparatory water bath for film or paper prior to processing that prevents uneven development. It is essential in some color processes.

I use a temp controlled water bath and get consistent development with Tmax. I've used Tech Pan for lens testing (developed in Microphen diluted 1:5) but prefer APX 25 for virtually grainless prints because it's cheaper and easier to use.

Ensure that you prepare sufficient volumes to completely cover the film in the tank. The required volume can often be found stamped on the tank somewhere, usually on the base. In place of a Stop bath you can use a water bath although it is not as ...

See also: Temperature, Processing, Photograph, Film, Photography