This is probably my fault - mea culpa. I raised the topic a while
ago - to some derision - as I had noticed that two of my lenses with
what I thought was the nicest bokeh, also had more numerous aperture
diaphram blades than my other zuikos. This got me to wondering if
this was coincidence or whether there was a cause-effect relationship
and what it might be.
The two zuikos with the nicest bokeh had nine blades, most of the
others had 8 while the poor old 35mm f2 had only 6.
I do not believe for one instant that this is the only
determining factor for bokeh just that it is part of the puzzle.
Of course the number of blades has no effect if a lens is used wide
open but does as soon as you close down one stop.
Giles
Steven wrote:
snip
> field, for the first time noticed "large aperture" and "many bladed diaphragm"
> together and said "hunh"!? Why on earth would the diaphragm have any affect
> on
> bokeh when it's fully retracted... Or does does it only "happen" at less than
> wide open? First I'm going to go search the archives** and then I'm going to
> go out
> with my 100 & 180/2.8 and take a series of pictures with the lens full open,
> 1 stop
>
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