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Re: a lot of over-exposed negatives: what to do?
><< That is, I thought my film speed was 320 for alt-process as for silver,
>and it's
> probably really closer to 400. >>
>
Dave wrote:
>You are probably not using the term accurately because according to the
>description above, you should have underexposed, rather than overexposed, but
>even so, the difference would not be big at all as mentioned by others.
Well, when I developed for 12 minutes, the highlights had a density of
about 1.8 (in zone VII) and the shadow areas (zone III) had a density of
about 0.5. So maybe I was overexposing more than a third of a stop. Or,
maybe this is not out of the range of acceptable density for zone III
shadows?
But I am confused about what you mean when you say I should have
underexposed, because when I change my film speed on the meter from 320 to
say 400, the meter indicates less exposure. For example, if my film speed
is 320, it might tell me to set the shutter at f/16 for a one second
exposure, but if my film speed is say 600, it tells me to put it at f/22.
So, if I thought my film speed was 320 and it was really 600, then I
overexposed.
--shannon