Frank Wajer <[EMAIL PROTECTED]> wrote:
>Hi,
>
>can anyone explain to me how a graduated filter works. I think that all 
>light from all points in the
>scene go through the entire filter/lens so how can a graduated filter 
>darken the sky relative to the
>(fore)ground.

The distance between the filter and the optical center of the lens
(which is behind the front element) does the trick. If you use an
extreme wide-angle lens at small aperture you get a pretty sharp clear ->
coloured transition.

Question: What filter type do you (plan to) use?
-- 
http://members.chello.nl/~j.schoone                                \\|//
Registered Linux user #78364 - The Linux Counter - http://counter.li.org
Assume nothing, expect anything.
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