I've seen lots of people advertising that a larger number of <EDIT> Aperture </EDIT> blades means a more pleasing blur in depth of field.
Then it struck me: the smaller depth of field means, of course, that the lens is wide open--e.g. no shutter blades impeding... I've never noticed a DoF difference between the two most open apertures (where, if the # of <EDIT> Aperture </EDIT> blades matter, then the difference should be largest). Therefore, the claim that the number of <EDIT> Aperture </EDIT> blades has any affect on the appearance of things outside the focal plane must be completely false... right?
<EDIT>
Thanks to Bjorn below for pointing out my miss-speak; should be aperture blades; not shutter blades.
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