Gary Miller (gmphotos@earthlink.net)
Wed, 30 Jun 1999 21:57:44 -0700
Strom;
We talked a bit about this matter a few months ago, maybe you can check the
archives. I brought it up because I recently had purchased a circa 1970
Calumet C1 8x10 and I noticed that my negatives outdoors were much dense and
had a much more deep pyro stain than my negatives made in the studio under
strobe conditions. The explanation at the time that I thought was probably
the answer for me was that my older lens had shutter speeds that were
drifting. My Ektar 360 has a self-cocking shutter mechanism, one type that
I have been told is prone to drift. So outside I would see if the shutter
speed was say a half a stop off and this could produce the greater density.
With strobe, the shutter speed doesn't matter. There were other
explanations that would cover other situations besides inaccurate lens.
Gary Miller
This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:39:38