[pure-silver] Re: Neither My Hassy Nor View Camera Have This Problem
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 29 Oct 2010 11:15:02 -0700
----- Original Message -----
From: "Gerald Koch" <gerald.koch@xxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Friday, October 29, 2010 10:34 AM
Subject: [pure-silver] Re: Neither My Hassy Nor View Camera
Have This Problem
Many years ago Canon made a camera called the Pellix which
was a SLR with an
immovable mirror. Since the mirror took up 30% of the light
entering the lense
the aperture sizes were larger to compensate. I don't know
if they refered to
these augmented stops as T stops or not.
Jerry
There were motion picture cameras with the same
arrangement, i.e., a pellicle mirror. I don't know how those
were arranged for exposure either. Presumably the loss
through the mirror would be constant so that a single
correction factor would do for all lenses.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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