Ken Durling <[EMAIL PROTECTED]> napisał / wrote:
> 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
>
More circular aperture blades will render better rounded outlines of
out-of-focus points of light - and thus contribute to better bokey -
but will not change light distribution within this out-of-focus area.
Regards
Jarek
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