A roll of 120 verichrompan from 1947 is very old. Tmax 100 from 03 is aged
nicely. Use Tmax developer at the rated instructions. You should be fine
From:
Ken Hough
Photographic Repair
Specializing in all Deardorff products
www.deardorffcameras.0catch.com
219-406-6849
On Jun 11, 2020, at 8:15 PM, `Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
Don't add time. What happens to film when it gets old is that it gets
foggy. Increasing development time will just make it foggier. The amount of
fog depends on the film, its speed, its age and how its been stored and other
factors. A medium speed film like 100-T Max is not likely to be very foggy.
If you have a habit of shooting film at less than its box speed the extra
exposure will help compensate for the fog. Uniform fog simply makes the
printing density a bit greater, i.e. longer print exposures, but can also
reduce shadow contrast which the increased exposure will tend to compensate.
I have stressed in the past that the ISO method of measuring speed is
designed to give you the highest speed consistent with good shadow detail but
increasing the exposure by even a couple of stops will not injure the tone
rendition of most film, in fact, it will probably improve it.
On 6/11/2020 4:39 PM, Janet Gable Cull wrote:
I wanted to practice shooting my Hasselblad handheld and had some very old
expired Tmax 100 film I used. The massive developing chart says 9 1/2
minutes in d76, 1:1. Shouldn't I add time to that because of the age of the
film? How much time? It expired in 2003. Wish me luck. 🙄
Janet Gable Cull
Sent from my iPhone
--
Richard Knoppow
dickburk@xxxxxxxxxxxxx
WB6KBL
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