JOBO rotary processor

Continuous Agitation This method is especially popular among those using JOBO rotary processors. The film is agitated non-stop for the full time of development. The direction of agitation should be varied to avoid streaks or patterns on the film. Development time should be reduced by 20%. 

Some readers may conclude that I have it out for JOBO rotary processors. Not at all. I highly recommend them for use with all color processes, C-41, E6, Ilfochrome, etc. They are also fine to use for paper development and negatives larger than 4X5 inches as long as sufficient volume of developer is maintained. They should never be used with developers that contain pyrogallol or pyrocatechin. 

If using a JOBO rotary processor it is not possible to use this volume of developer without burning out the motor. The simple remedy is to increase the amount of developing agent in solution. Try adding 30% or more of Solution A than called for by the formula. This will insure that the developing agent is not fully exhausted by the time the process is complete. 

Does not suffer from uneven staining or streaking when used with a JOBO rotary processor. 

Processing time and temperature in the first developer is important and should be kept within +/— 1 degree. For this purpose a JOBO rotary processor is an excellent choice. If one is not available, try placing the developing tank in a water bath to maintain the processing temperature. 

The simplest remedy is to not use a rotary processor with pyro/cat development. While JOBO rotary drum processors may work well for large format negatives souped in MQ and PQ developers they are not ideal for developers that potentially ruin negatives when they are exposed to air during routine development. 

This developer was formulated for use with a JOBO rotary drum processor. Part A... 

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