On a similar topic, I've noticed that on my 35-70/3.5-4.5 whenever the
aperture is set to something smaller than the maximum, the camera meters
with the diaphragm partly stopped down at the 35mm end (and pressing the
preview does not close thge diaphragm any further). IOW, if set at f4.5,
the lens behaves as if it's a constant f4.5, but the camera thinks it is
metering at f3.5 and still has to stop down to 4.5. This should result
in overexposure, but I've neverbeen picky enough to check it out
carefully.
Dylan
> Date: Tue, 17 Oct 2000 20:15:07 EDT
> From: DAVDOU9211@xxxxxxx
> Subject: Re: [OM] Baffled
>
> Interesting observation Tom. I put both my 35-70mm f/4 and 75-150 f/4 on my
> OM 1 and zoomed from shortest to longert foocl length on each. The needle
> does move about 1/2 stop. That you were using a zoom with a greater zoom
> range makes sense; the range of change varies proportionate to the amount of
> change in the focal length from shortest to longest. Or something like
> that.
> (furrowed brow)
>
> Dave Dougherty
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