----- Original Message -----
From: "Andrew Fildes" <afildes@xxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Wednesday, 18 January, 2006 07:42 PM
Subject: [OM] Re: Polarizer issue
>
> B+W has made 'wide' filters for some time, where the glass size is
> far larger than the filter thread size. rather pricey and essentially
> the same effect as a simple solution - get a skinny step-up ring and
> mount a bigger filter! (As in the Zuiko 18mm 49-72mm hood). On the
> 24mm use a 49-55mm step-up and you should be fine
not so in my experience: to avoid vignetting with my 24mm/f2.8 I have always
used a 49-72 step up ring. Anything less than a 49-72 step up has been a
problem.
jh
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