Using the "Sunny 16" rule and an ISO 100 film, I come up with
this, more or less:
1/125 sec. @ f/16
1/60 sec. @ f/22
1/30 sec. @ f/32
1/15 sec. @ f/45
1/8 sec. @ f/64
1/4 sec. @ f/90
1/2 sec. @ f/128
1 sec. @ f/180
Am I missing something?
Walt
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
"...as we know, there are known knowns; there are things we know
we know. We also know there are known unknowns; that is to say,
we know there are some things we do not know. But there are also
unknown unknowns, the ones we don't know we don't know." -- Donald
Rumsfeld
---------- Original Message ----------------------------------
From: "Curtis P. Hedman" <Curtis.P.Hedman-1@xxxxxxxxxx>
Reply-To: olympus@xxxxxxxxxxxxxxx
Date: Thu, 04 Dec 2003 19:06:04 -0600
>I decided to try pin-hole photography with my OMs recently... I
>bought a body cap with a drilled piece of stainless steel in the
>center. When I tried it out on my -4T, I expected a pretty
>long "open shutter" time, given the f/stop is on the order of 180
>or so. To my surprise, almost every exposure I tried clicked off
>at about 12-14 seconds, regardless of what I pointed the camera
>at. Is there something I'm missing?
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