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Re: Exposure and development control

  • From: Scott Donkin <photos@xxxxxxxxxx>
  • Subject: Re: Exposure and development control
  • Date: Fri, 01 Nov 1996 15:10:20 +1100
At 06:55 PM 22/10/96 +0100, you wrote:

>That development seems like plenty to give full-bodied negs. Your mistake
>might be in drifting below 68 degrees for the developer. I know from
>experience that the potency of print developer drops off rapidly when the
>temperature is cool (probably in the 60's somewhere). 

Development rate drops off as temp decreases anyway.  However, once is gets
down to 13C (55F), the Hydroquinone component of a typical developer stops
working, so, bingo, flat negs!


Cya...

   ______
   Sco||                E-mail:   photos@xxxxxxxxxx
                       Fidonet:   3:713/914.11

..due to the current economic situation, the light at the end of the tunnel
has been turned off until further notice.


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Topic No. 27