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Re: [OM] Polarizer, was Brighter screens and meter readings (reprise)

Subject: Re: [OM] Polarizer, was Brighter screens and meter readings (reprise)
From: julian_davies@xxxxxxxxxxxxxx
Date: Wed, 2 Oct 2002 13:29:40 +0100 (BST)
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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