One of the Pen F lenses (Maybe the 100?) came with a reversible ring that had the 1,2,3,etc. on the top and the matching "f" scale on the bottom. (I think, he said.)[?][?] On Thu, Mar 7, 2013 at 6:00 PM, John Hermanson <omtech1@xxxxxxxxxxx> wrote: > Thank you to everyone who helped on this. > > ___________________________________ > John Hermanson | CPS, Inc. > 21 South Ln., Huntington NY 11743 > 631-424-2121 | www.zuiko.com > Olympus OM Service since 1977 > Gallery: www.zuiko.com/album/index.html > > On 3/3/2013 2:46 PM, Frank Wijsmuller wrote: > > For visual proof of Chuck en my remarks look at the front page of this > > brochure... < > http://www.skipwilliams.com/olympus/pen-lit/o-penft-1067.pdf> > > Clearly visible is the 0.5 minimum number of the 50-90mm lens. > > I'd guess it has something to do with the image circle of the lens and/or > > the non linearity of the light meter (it looks special). > > Best, Frank > > > > > > > > > > 2013/3/3 Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> > > > >> But if you look at the detail given on the lens list 0 represents max > >> aperture on only about half of the lenses. Some have max aperture = 0.5 > >> or 1.0. > >> > >> Chuck Norcutt > >> > >> > >> On 3/3/2013 12:56 PM, John Hermanson wrote: > >>> According to the Pen FT owners manual I found on line, "0" on the Pen > >>> scale coincides with whatever the maximum aperture of the lens in use > >>> happens to be. 38mm f1.8, "0" = 1.8, 100-200mm f5 zoom, "0" = f5. > >>> > >>> ___________________________________ > >>> John Hermanson | CPS, Inc. > >>> 21 South Ln., Huntington NY 11743 > >>> 631-424-2121 | www.zuiko.com > >>> Olympus OM Service since 1977 > >>> Gallery: www.zuiko.com/album/index.html > >>> > >>> On 3/2/2013 4:51 PM, Frank Wijsmuller wrote: > >>>> Hi Chuck, > >>>> is this the brochure you read? > >>>> <http://www.skipwilliams.com/olympus/pen-lit/o-penft-1067.pdf> > >>>> A nice one anyway. > >>>> Best, Frank. > >>>> > >>>> 2013/3/2 Chuck Norcutt > >>>> > >>>>> I've never had a Pen before and knew nothing of this non-f/stop > >>>>> numbering system until I just looked it up in an Olympus Pen-FT > >>>>> brochure. > >>> > >> -- > >> _________________________________________________________________ > >> Options: http://lists.thomasclausen.net/mailman/listinfo/olympus > >> Archives: http://lists.thomasclausen.net/mailman/private/olympus/ > >> Themed Olympus Photo Exhibition: http://www.tope.nl/ > >> > >> > > -- > _________________________________________________________________ > Options: http://lists.thomasclausen.net/mailman/listinfo/olympus > Archives: http://lists.thomasclausen.net/mailman/private/olympus/ > Themed Olympus Photo Exhibition: http://www.tope.nl/ > >
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