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Re: development for alt-process
Getting drastically different personal film speeds from different cameras
would confuse things! Almost certainly the shutters need to be cleaned,
lubed, and adjusted. Very common need with older gear.
--
Tom Ferguson
http://www.ferguson-photo-design.com
> From: sstoney@pdq.net (shannon stoney)
> Subject: Re: development for alt-process
>
> Tom wrote:
>
>> Personal film speed (what you set your meter to) and development time (what
>> density range you need to match a given process) are not easily "given" over
>> the net. There are too many variables. How you develop (you use a daylight
>> tank, I use trays), the developer (you use D-76, I use HC-110). Even
>> tougher, how you meter a scene. I had a discussion with someone on this
>> list (Carl Weese, was this you??) about how our exposure indexes could be so
>> far apart. It came down to what I saw as "zone 2 / deep shadow" and what he
>> saw. Not the same thing. Gets even more confusing if I use a spot meter and
>> you use an incident meter!
>
> I went through all this when I was a silver printer, and I was astounded at
> how my different cameras (all old) had such different personal film speeds,
> etc. They ranged from 400 to 1600, for the same film (Tri-X).
> BIG SNIP>