On Tue, 31 Jul 2001 15:15:21 -0700 (PDT), you wrote:
>What are the benefits of "circular aperture blades"?
>And what exactly does "attractive defocusing" mean? (other than lens flare
>looking like a circle, rather than the usual octagon) If the background
>is blurred out, will the edges be... smoother?...or what exactly.
Not the flare, Green, but the out-of-focus things. Although I think I
know what you mean, when a bright out of focus object "flares." And
you've got the basic idea - smoother "circles of confusion." Bad
"bokeh" or out of focus areas, are characterized by bright rings with
darker centers, among other things, but I'm not sure that's entirely a
function of aperture blade config. Good bokeh looks smoother, doesn't
have bright rings - the blurry objects are smooth across their
surface, and with a more circular COC blend into the general
background more gracefully.
At least that's my understanding of it.
Ken Durling
Website http://home.earthlink.net/~kdurling/
Alternate e-mail: [EMAIL PROTECTED]
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