I looked at tab position on 16mm 3.5, 24 f2, 35 f2, 100 2.8 and 180 2.8, and
at maximum aperture, the tabs are all in the same position on the back of
the lens . This is pushing the coupling ring near the limit of it's travel.
----------------------------------------------------
John Hermanson www.zuiko.com
mail: omtech@xxxxxxxxx
Camtech, Olympus Sales & Service since 1977
21 South Lane, Huntington NY 11743-4714
631-424-2121 Turnaround 4-5 weeks
----------------------------------------------------
----- Original Message -----
From: "Daniel Sepke" <fred42@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Friday, August 29, 2003 9:22 AM
Subject: Re: [OM] Stop Down Metering
> Hi there John,
>
> Thanks for your response. Very helpful. It inspires me to ask a couple
more
> questions.
>
> Is it possible to figure out what that position of the lever is?
>
> Having compared my 50mm/f1.8 and 135/f3.5 at the same aperture (f8) the
tab
> on the lens is not in the same position. So from that would I be correct
in
> guessing that the position of the tab will be different based on the focal
> length of the lens? Even when comparing same apertures? So to find the
> correct position for the lever one must look at the same focal length auto
> lens?
>
> Given the above what sort of success would one likely have with a t-mount
> adapter and a selection of different focal length and speed lenses?
>
> Thanks, Dan.
>
>
> ----- Original Message -----
> From: "John Hermanson" <omtech@xxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Sent: Friday, August 29, 2003 8:33 AM
> Subject: Re: [OM] Stop Down Metering
>
>
> > For stop down metering to be correct, you would need some sort of
> mechanical
> > tab to permanently hold the camera body coupling ring in the f position
> that
> > matches the maximum f stop of your lens. Then turning the aperture on
the
> > lens would have no effect on the meter position. Only pressing the
depth
> of
> > field would show you a meter change.
> > ----------------------------------------------------
> > John Hermanson www.zuiko.com
> > mail: omtech@xxxxxxxxx
> > Camtech, Olympus Sales & Service since 1977
> > 21 South Lane, Huntington NY 11743-4714
> > 631-424-2121 Turnaround 4-5 weeks
> > ----------------------------------------------------
> > ----- Original Message -----
> > From: <fred42@xxxxxxxxx>
> > To: <olympus@xxxxxxxxxxxxxxx>
> > Sent: Thursday, August 28, 2003 3:18 PM
> > Subject: [OM] Stop Down Metering
> >
> >
> > > Hi there All,
> > >
> > > I have been trying to figure out the correct methods for taking a
> stopped
> > down reading with either my OM-1 or 2n.
> > >
> > > I have a manual diaphragm lens that I want to use but would prefer to
> not
> > have to use an external light meter.
> > >
> > > With the 2n I have discovered that in Auto mode it is going to make
the
> > right exposure regardless of meter reading since it is reading off the
> film.
> > >
> > > So my question(s) are what is the correct method for manual mode with
a
> 2n
> > and does it change with the OM-1?
> > >
> > > Thanks, Dan.
> > >
> > >
> >
> >
> >
> > < This message was delivered via the Olympus Mailing List >
> > < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> > < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
> >
>
>
> < This message was delivered via the Olympus Mailing List >
> < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
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>
>
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