In your message dated: Mon, 07 Dec 1998 09:46:05 PST you write:
>
>I think "need" is relative. On models with spot metering (2s, 3, 3Ti, 4,
>4T, 4Ti) a polarizer MAY cause a low meter reading if it is at a right
>angle with the polarization that the half-silvered mirror introduces on the
>way to the spot sensor. However, the TTL automatic exposure will still be
>correct.
>
>I have always used linear polarizers with my 4/4T, and have not noticed
>obvious problems. Your mileage may vary!
My mileage certainly did. Just after getting my OM-4, I went on a trip
to Chile. I dutifully spot-metered about 750f my shots using a linear
polarizer. Almost every one of those shots was 1-3 stops overexposed,
and all are of course irreplaceable. My advice since that unfortunate
episode is "if you are going to use a spot meter, get a circular
polarizer, and throw all your linear polarizers away." It really
bothers me that people continue to say "awww, you really don't need a
circular polarizer." If you are going to use the spot meter, you do.
Period. End of discussion!
Cheers,
--Lee
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