Didn't someone already suggest firing the camera after removing the
batteries? That will interrupt the exposure cycle after lifting the
mirror and exposing the shutter curtain. At that point you can examine
the curtain's black and white speckled metering pattern.
If it's center weighted there will be more white speckles toward the
center of the curtain. If it's an averaging pattern they will be evenly
distributed across the entire curtain.
Replace the batteries to allow the camera to complete the exposure cycle.
As I recall, there were two different patterns used in early and later
OM-2's. I don't know if there was ever more than one pattern used in
OM-2n's. I suspect it's the same as the later model 2's. Anyhow,
examining your own shutter curtain will answer the question for your
particular camera.
Chuck Norcutt
Moose wrote:
> I've been waiting for someone more knowledgeable to answer, but they are
> being coy. I would swear that I've seen graphs of this, but I can't
> remember where. Generally, I think you can assume that 'most' of the
> sensitivity is in the central 1/3 of the viewscreen. Not very
> scientific, but that'a the impression I gained using a 2n for many years.
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