Development time Unicolor / Beseler motor base

Discussion in 'Large Format' started by wmwhee, Nov 27, 2006.

  1. By what percentage of time would I reduce recommended development time for
    normal development when using a Unicolor tank and Beseler motor base?
    Thanks. Bill
  2. I use the Unicolor rotary base all the time. I have the instructions for the tank. The recommendation for B&W is a reduction of development time of 15%.

    On the other hand, common practice is to increase the development time by 30 seconds if a prewash is used to allow the developer to displace the prewash water.

    Hope this helps.
  3. Eager for results, I developed a couple of sheets last night, reducing development by 10% (too little reduction?), and another couple of sheets this morning, reducing development by 20% (too much reduction?). I will contact print the negs to check density and contrast, but I think reducing development by 15% sounds just about right. Thanks. Bill
  4. I do 15% less than the published times--seems to work just about right.

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