Sounds to me like the Tiffen may not be perfectly circular, and that the
tolerance on the thread diameter on the two lenses are at work, ie the 28mm is
just over 49mm dia, and therefore lets the filter screw on, while the 50 is
closer to, or just under, and catches on the high spot.
Julian
> from: Albert Yang <olympus@xxxxxxxxxxx>
> date: Fri, 03 Jan 2003 06:56:23
> to: olympus@xxxxxxxxxxxxxxx
> subject: Re: [OM] Tiffen filters?
>
> My tiffen 49mm fits fine on my 28mm lens, and on my 50mm lens. The B W
> fits fine on the 28mm lens also, but it will NOT thread onto the 50mm.
> I've got a Tiffen polarizer and it fits fine on both as well. It's
> only the 50mm & B W that doesn't fit..
>
> Albert
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