[rollei_list] Re: question on operating ..."bokeh" again

Carlos

Some counts the diaphragm as part of the bokeh and some don't.

I do. And I agree with everybody that says it doesen't matter at
full aperture.
The reason why I believe the diaphragm has everything to do with bokeh,
is due to the shaping of the out of focus highlights. I prefer to have
nice and round out of focus highlights in my pictures.

But for the record; I recognise that nice bokeh has everything to
do with the lens, I just like to get them nice n'round highlights in
the bokeh areas as well.

Per Einar


>
>
>I agree with you about the 2.8C since I'm using one
>from 35 years ago( Xenotar version), however I'm
>afraid that the "bokeh" has much more relationship
>with the lens design than with the diaphragm design. I
>have the evidence that a 2.8F Planar using the five
>blades diaphragm has an excellent "bokeh" like my old
>3.5E Planar too. I verified using my 2.8C that its
>very good bokeh does not change with the diaphragm at
>5.6 and with the diaphragm at 2.8 where the iris
>blades don't work, it demonstrates that the "bokeh" is
>linked to lens design.
>In the other hand, I'm afraid that an excellent lens
>like the Xenar 3.5 even using the ten blades diaphragm
>does not show similar bokeh quality despite it is
>acceptable, I'll do some tests about it with the
>Rolleicord IV.-
>
>All the best
>Carlos
>
>
>
>
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