The way I see it, the 'tulip' shape actually represents a rectangular shape
at the film plane. On the long sides, there is deeper coverage near the
middle. The corners are the shortest, since they extend to the edge coverage
of the lens. The shade also must be mounted to conform to the frame. They
look wierd, but provide more shading than could be provided with a round
shade of uniform length. The tulip model will have a smaller profile for the
same area of coverage. Perhaps it's easier to manufacture this type of shade
than a true rectangular model.
--Mickey
----- Original Message -----
From: "Bill Pearce" <bspearce@xxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, June 30, 2002 10:37 AM
Subject: [OM] shades
> "Why is the lens shade "petal" shaped (for want of a better term) on the
> E-10/E-20 and many other higher end cameres? Is it just to look sexy or
> does the shape have some real function?"
> Yup, and saves plastic, too! To be ideally effective, shade should be
> rectangular, to match the frame.
>
> Bill Pearce
>
>
>
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