Gary:
I think is best you search for a lens 21 f 3.5 multi coated.
You have tested a lens sc. If you test now a lens mc on OM 4 we ´ll have
more information. Is more logic 21 2 mc vs 21 3.5 mc.
-------------------------
Tryin to emulate the system of the OM 4 that shot with diaphr. pre fired
and the MLU, when I shot with the OM 1n and a big lens, 1: I take up the
mirror, 2: close the diafragm with my finger (DOF mech.) and 3: press the
shuter release.
I hear the sound of the mech. that close the diafr. hits on the same way as
you say when you shot wide open because "the diaphragm has no where to go"
There is not dampening effect. (There is a hit and some vibrations).
Working with the OM 1n and this system, Is the result worse that shot
only with MLU ?
Ángel Lobo
CUENCA (Spain).
----------
> De: Gary Reese <pcacala@xxxxxxxxxxxxx>
> A: olympus@xxxxxxxxxxxxxxx
> Asunto: RE: [OM] wide angles
> Fecha: miércoles 26 de enero de 2000 19:00
>
> I'll plan on reshooting the 21mm f/3.5 with an OM-4T. My prediction is
> that it will get better SQF grades wide open on the OM-4T. From other
> OM-1 vs. OM-4T/OM-2000 comparisons among wide angles and normals, I'm
> hypothesizing that when the automatic diaphragm mechanism in an OM-1
> hits the coupling on the lens and the diaphragm has no where to go
> (because you are shooting wide open), there isn't the same dampening
> effect that one would get if the diaphragm blades had been able to move
> (shooting stopped down). In another words, you get a jarring effect that
> creates a harmonic vibration which lingers into the time at which the
> shutter is open.
>
> Hope this doesn't send Joel back to the laser pointer :-)
>
> Gary Reese
> Las Vegas, NV
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