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Re: [OM] How many aperture blades on 50/2 macro?

Subject: Re: [OM] How many aperture blades on 50/2 macro?
From: Joey Richards <bigjoe@xxxxxxx>
Date: Thu, 10 Feb 2000 11:06:09 -0500
Gregg Iverson <giverson@xxxxxxxxxxxxx> wrote:
> > It's just a theory.
> 
> How do we test it?

Well, the process that Giles described for the production of out
of focus highlights is straightforward convolution of a clear image
of the objects in front of the camera with the image of the aperture
on the film -- that is, a tiny point takes the shape of the aperture's
image.

So we could take a few entirely in-focus images (either photographs
shot at f/16 and infinity focus, or synthetically-created images such
as cartoons/paintings or ray-traced images) and filter them with various
aperture shapes.  Put these on a web page and have people click on
the ones they find pleasing and generate statistics from that...

joey

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