For filters, I typically use a 72mm for maximum flexibility. I carry
step-down rings for 49, 55, and 62mm for my main OM lenses. Alternatively,
I use 55's and step down to 49 when necessary.
For ND-Grads, the Cokin P filters are the most flexible. You can get
adapter rings up to 82mm and they don't vignette on a 21mm lens.
Skip
From: Jim Couch <JamesBCouch@xxxxxxxxxxxxx>
Reply-To: olympus@xxxxxxxxxxxxxxx
To: olympus@xxxxxxxxxxxxxxx
Subject: Re: [OM] step up adapter question
Date: Thu, 13 Dec 2001 23:24:58 -0800
I would go with the 72, that way you could use it when you get the 18 f3.5.
:) Seriously, the 55 might not be enough, but with the 72 you should be
fine. In fact I would guess with the 72 you could probably stack a thin
filter and a thin polarizer.
Jim Couch
Mike wrote:
> So today I ventured out into the madness that is the I-5 corridor
> through W. Washinton on my bi-monthly visit to Costco. Anyway I had time
> for a quick stop at the local camera store and found a graduated ND
> filter that I'd been thinking about getting. As soon as I got it out of
> the box i could see that it would vignette on the 21/3.5 as it was at
> least as fat as a polarizer. So now I'm thinking I'll have to order a
> bigger one and a step up ring. An obvious choice would be either a 55mm
> or a 72mm. The 49-72 could double as a lens hood but is more bucks for
> the filter. 49-55 might not be enough and still vignette. I've got to
> mail order so can't try them on first. What say ye?
>
> mike
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