But when you use such a lens for macro subjects you get a telephoto effect
in terms of a very reduced depth of field, a condition where bokeh can
play an important part in an image.
I was very surprised, to say the least, when I discovered the 50/2 had
only six blades forming it's aperture. None the less a great lens for
landscapes ;-)
Giles
John A. Prosper wrote:
> The more blades you have, the more circular the out of focus (i.e.,
> bokeh) diaphram "reflections" in the background, which seems to
> increase the bokeh quality. The high blade count is more important
> with teles since they have much less depth of field than wider lenses;
> so I am not seriously disappointed with the 50/2 blade count. ;-)
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