PCA Cala wrote:
>
> Hi Doris:
> << I can't believe companies don't offer a corrective filter for lenses like
> this one. It'd be worth it. >>
>
> and Ian:
> << How would that work? >>
>
> Heliopan "center filters" would do the trick. You can see them listed, for
> instance, with view camera lenses. It is common practice to correct light
> falloff in super wide angle view camera lenses. However, a 49 mm filter would
> run about $165 or more.
>
There is no front thread on the 14mm Sigma. Center filter? No way
Richard
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