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From: reh1366@hou2b.UUCP (R.HOWARD)
Newsgroups: net.rec.photo
Subject: f stops and foodcandles
Message-ID: <511@hou2b.UUCP>
Date: Thu, 9-May-85 23:16:35 EDT
Article-I.D.: hou2b.511
Posted: Thu May  9 23:16:35 1985
Date-Received: Sun, 12-May-85 01:20:08 EDT
Organization: AT&T Bell Labs, Holmdel NJ
Lines: 10

I once saw a table claiming to convert exposure readings on a 
camera to ambient footcandles.  It involved setting the ASA to
100 and fixing the shutter speed.  The f stop at the proper exposure
was directly related to foodcandles.  The table was weird in that it
didn't scale in any reasonable way with f-stop (ie, sqrt, power law, etc.)
Anybody know the real conversion?
Thanks.
Rich Howard
hou2b!reh1366