The auto OTF metering is unaffected by a linear polariser, as the effect is on
the transmission through the primary mirror. Manual and spot measurement
require a CIR POL, as both measurements are made from the secondary mirror
after transmission through the primary mirror.
Julian
> from: zuiko@xxxxx
> date: Wed, 02 Oct 2002 20:22:44
> to: olympus@xxxxxxxxxxxxxxx
> subject: Re: [OM] Polarizer, was Brighter screens and meter readings
> (reprise)
>
> On Wed, 2 Oct 2002 14:07:54 0200 "Roger D. Key" wrote:
>
> > Note that this system of light measurement throught the semi-silvered
> mirror requires the use of a circular polarizer filter instead of a linear
> polarizer filter, to measure exposures correctly in manual mode.
> >
> Roger,
>
> Is this only for manual mode, or for the spotmetered automatic mode as
> well? I mean, If I take 3 spotreadings, will my exposure be correct with a
> linear polarizer on an OM4?
>
> Iwert
> Planet Internet Webmail -- http://www.pimail.be
>
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