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Re: [OM] metering question

Subject: Re: [OM] metering question
From: "Ian A. Nichols" <I.A.Nichols@xxxxxxxxxxxxx>
Date: Wed, 1 Dec 1999 09:33:43 +0000 (GMT)

On Tue, 30 Nov 1999 Pauls0627@xxxxxxx wrote:

> This is basically what they did with the OM-2S, OM-4, and OM-PC/40. When the 
> mirror is down the sensor at the bottom of the mirror box measures the light 
> which passes through the partially silvered main mirror and then is reflected 
> off of a sub-mirror behind it. I presume a sub mirror is used instead of 
> measuring off of the patterned shutter curtain due to the reduced light 
> levels available behind the main mirror.

I've been wondering about this - what happens on an OM-2s(p) when you
switch from auto (CWA) to manual (spot) metering?  The mechanical
arrangement suggests that the same light is being metered by the same
sensor, so is the auto-preview reading also a spot reading? (it doesn't
appear to be) otherwise, how is the metering area changed?

-- 
________________________________________________________________________
*             |                                                        |
|  /  | |/-\  |                      Ian A. Nichols                    |
| |   | |   | |                                                        |
|  \-/| |  /  |                  i.a.nichols@xxxxxxxxxx                |
|             *                    iann@xxxxxxxxxxxxx                  |
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