>
> So I know that the meter in an OM-1 and OM-2 will read 2/3 stop over
> correct exposure when a 2 series screen is installed (ie will
> underexpose by 2/3 a stop); and that the OM-2 measures all exposures
> at speeds slower than 1/45 second OTF in auto mode; my question is,
> will an OM-2n with a 2 series screen installed give accurate exposures
> at all speeds in auto mode, or will it only give accurate exposures at
> shutter speeds slower than 1/45 a second? I have a modified 2-4
> screen that I would like to install in my OM-2n, but if it results in
> underexposure at faster speeds, I will put it in my OM-1n instead and
> simply compensate the 2/3 a stop by using the ASA dial.
>
In auto mode, it will give accurate exposures at all speeds. The first
curtain of the shutter has a semi-reflective pattern that mimics the film
surface itself. The camera starts to measure the exposure as soon as the
mirror has moved up and out of the way.
AG
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