Winsor,
A turning barrel throws off circular polarisers just as much as linear. It's
not an era thing it's a cost / complexity (and occasionally feasibility)
thing.
Julian
Cambs, UK
----- Original Message -----
From: "Winsor Crosby" <wincros@xxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, February 18, 2003 4:35 PM
Subject: RE: [OM] Tripod mount ring for 180/2.8?
> The barrel on my 200/4 does not turn. It just extends. A good lens
> from that era never rotated on focus because it would throw off your
> polarization. It was before circular polarizers were needed to deal
> with other issues in the metering.
> --
> Winsor Crosby
> Long Beach, California
>
>
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