Jim wrote:
>
> I would like to buy a UV or Skylight filter for my Tokina 17/3.5 lens.
> If I were to use the filter size accordingly to the lens at 67mm, will it
> cause vignetting? or should I use a step-up ring to 72mm or 77mm to prevent
> vignetting?
One would assume that the designers at Tokina made it a 67mm thread in
order to avoid vignetting. You may want to try thin filters though just
to be safe.
I haven't used the lens you mention so I can't lend any personal experience.
--
Andrew "Frugal" Dacey,
frugal@xxxxxxxxxxxxxxx
http://www.tildefrugal.net/
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