From: Sandy King (sanking@clemson.edu)
Date: 05/18/03-05:50:36 PM Z
Hi Alex,
Thank you for the information, and it is good to hear from you.
With FP4+ and normal SBR scenes I get a density range of 1.40 with
ten minutes of development at 70F, rotary processing. This is based
on the reading in UV mode, which for this range averages about log
0.30 more than the blue channel reading. This specific negative read
in blue .11 - 1.66, and in UV .25-2.11.
With FP4+ and the 2:2:100 dilution the density range is 1.40 with six
minutes of development, again based on the UV reading. The negative
in question had a range of .11- 1.48 in blue mode, and .26-2.02 in UV
mode.
Regards,
Sandy
>On Sun, 18 May 2003 14:27:44 -0400 Sandy King <sanking@clemson.edu>
>writes:
>> This message is for those who are currently using a Pyro developer,
>Pyrocat-HD
>> What I would like to know is your, 1) method of processing,
>> development temperature, and type of agitation, 2) time of
>> development for a scene with normal lighting (that is, one that has
>
>Sandy,
>
>I have done some testing using the Phenidone version of Pyrocat HD. Note
>that I mix the stock solution using distilled water, but pre-soak, final
>developer dilution (just prior to using), and wash is with tap water.
>Two to 5 min pre-soak. Fix is rapid fix without the acid. Times are for
>normal lighting contrast. My times for most developers run 10% - 20%
>higher than "book" values. I suspect this is due to the pre-soak and the
>alkali quality of my tap water.
>
>120 FP4+, 1:1:100 @ 70 deg for 9:20 yields a DR of 1.4 using the blue
>channel, small tank, 30 sec inv.
>
>120 FP4+, 1:1:100 @ 70 deg for 11:45 yields a DR of 1.6 using the blue
>channel, small tank, 30 sec inv
>
>120 TMX, 1:1:100 @ 70 deg for 12:50 yields a DR of 1.4 using the blue
>channel, small tank, 30 sec inv
>
>120 TMX, 1:1:100 @ 70 deg for 18:15 yields a DR of 1.6 using the blue
>channel, small tank, 30 sec inv.
>
>Sheet FP4+, 2:2:100 @ 70 deg for 9:20 yields a DR of 1.6 using the blue
>channel, Unicolor drum and agitator.
>
>Sheet FP4+, 2:2:100 @ 70 deg for 8:10 yields a DR of 1.3 using the blue
>channel, Unicolor drum and agit.
>
>Alex Sim - - a long time lurker
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