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/
|