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Thread: Analogue Darkroom Digital Assistant

  1. #11

    Join Date
    Jan 2009
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    Iran / Manila
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    362

    Re: Analogue Darkroom Digital Assistant

    the compensating process timer looks nice.. if what i understand.. if my developing time i 20C 11 minutes etc.. if the developer went to 22c-26c the apparatus would compensate the dev time? how would you put your agitation there? still the same? eh silly question. nice products

    thanks!

  2. #12

    Re: Analogue Darkroom Digital Assistant

    Quote Originally Posted by tenderobject View Post
    the compensating process timer looks nice.. if what i understand.. if my developing time i 20C 11 minutes etc.. if the developer went to 22c-26c the apparatus would compensate the dev time?
    As an example, if you specify a compensation of 10sec per degree Celsius, when the actual developer temperature is 26c :

    time = (26c - 20c) x 10sec = 60sec or 1min
    the adjusted total development time = 11 - 1 min = 10min

    Note that you can create up to 9 compensation profiles (also called TEX profiles) for different developer/film/paper combo.

    Quote Originally Posted by tenderobject View Post
    how would you put your agitation there? still the same?
    The agitation is set at 30sec intervals (one beep for 30s and two for 60s). So even if the time gets adjusted, the time intervals between the last beep and the next expected beep is 30sec.


    Quote Originally Posted by tenderobject View Post
    eh silly question.
    good question in fact. one of the design choices I had to make when developing ADDA was whether to hv the agitation beep sped up/slow down in line with the timing compensation, or to have a fix timing interval. I decided on the latter as the purpose of agitation is to "refresh the exhausted" developer and a fixed 30 agitation seems like a good rule of thumb based on information I've gotten from books, forums, etc.

    Quote Originally Posted by tenderobject View Post
    nice products
    thanks!
    Thanks for the feedback! I'm glad you like it!

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