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
