The Oly WA diffuser that comes with the ND filters for the T32 is not a
Fresnel lens. It looks like a translucent white filter. I don't use a
flash very often but it seems to work well.
The WA diffuser for the F280 might be a Fresnel lens.
-jeff
>
> Well, the Oly WA diffuser is an abbreviated cross-section of a Fresnel
> lens, so I assume that it distributes the light dump a little better
than a
> homemade one would. Also it's transparent, so there's probably a
little
> less light-loss. IMHO. Of course.
>
>
> Garth
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