At 09:03 PM 18/04/2002 -0700, you wrote:
>I don't think a test chart is necessary. All you need is something flat and
>with some detail both center and edge. You are not trying to get publishable
>measurements, just to see if the filter degrades the image. If you happen to
>find one that gives a nice overall softening effect, you now have a soft
>filter for portraiture! :-)
Any good topo map should do, too.
Garth
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