In a message dated 6/18/2003 12:52:09 PM Eastern Standard Time,
murphytj@xxxxxxxxxx writes:
> I have an S Zuiko 35-70 f4 zoom with a diaphram that doesn't seem to be
> fully opening. The blades are snappy and when I look through the lens,
> set at f4, with the zoom set at 70mm I see a circular opening. However
> if I set the zoom to the 35mm setting and look through it the diaphram
> is shaped like an octagonal. I presume that the aperture blades are not
> fully open. Is this normal? If not are there any suggestion
> as to how
> to rectify it?
Tom,
I'm at work at the moment and don't have my 35-70/4 handy, but if I recalll
correctly, this is normal. The aperture blades open and close slightly as you
zoom in order to maintain the constant f/4 aperture.
I'll double check mine tonight.
Paul Schings
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