Alan Marcus , Jun 29, 2009; 05:43 p.m.
These films are panchromatic meaning sensitive to all colors therefore best not to use a safelight. A dim green safelight is available but it is so feeble that mainly it might keep you from tripping over something. Practice removing the film from the cassette and loading it onto the reel with the lights on. Do this again and again until you are sure you can do this. It might require that you sacrifice several rolls this is true because after several practice runs the film will likely become deformed and impossible to load. Remove the film from the cassette and load it onto the reel in total darkness. Test the integrity of the total darkness by practicing with the lights out. To complete the process go through all the steps substituting water for the chemicals. You need to figure out how much fluid you will need to cover the film. The fluid lever must exceed the reel height. Fill the tank with water in the light to make this determination then measure the volume required. As to temperature, it is my advice to work at the temperature of the running water. Likely this will be above 20° C in the summer time. If the water coming out is say 26º C then go ahead and adjust your chemical to this temp. It is better if all chemicals and the wash water are nearly the same. The instruction sheet for the developer will have a time/temp chart. The chart will give the time based on temperature. Once the film is in the tank, turn on the lights. Pour in the pre-measured developer. Agitate continuously for 30 seconds. Set down the tank. Now agitate for 5 seconds every 30 seconds. At the end of the period pour out the chemicals into a bottle using a funnel. You can use running water as the stop. You can use a purchased stop bath. You can use water with an added teaspoon of vinegar per liter. It makes no difference. Time in the stop is not critical. As soon as the fluid has covered the film, agitate and discard. Now pour in the fixer. Agitate continually for one minute. Remove the tanks top and lift out the reel. Observe the film. Is it opaque or transparent? The film will soon turn transparent between frame and on the edges. Fix time is twice the time it takes to go from opaque to clear. Likely 5 minutes will be more than adequate. Wash 30 minutes in running water. If water availability is a problem shorten the wash time using a hypo clear solution. Add a drop of wetting agent like PhotoFlow or liquid detergent to the tanks allow to soak 30 seconds. Carefully remove film from reel and suspend with clip at both ends. Allow to air dry. Best of luck!