On Thu, Sep 26, 2013 at 11:19 AM, Ken Norton <ken@xxxxxxxxxxx> wrote:
> Until the mid '80s, they were silvernosed. The coatings did change
> through the production run, and the final ones before black-nose had
> all but the green reflection. The later, black-nosed ones are fully
> multi-coated.
>
> As with the 50mm lenses, there was some optical changes through the
> years too. The earlier ones tended to be sharper in the center with a
> loss of sharpness in the corners. The later ones sharpened up the
> corners, but the center isn't quite as sharp. The later ones have a
> near uniform sharpness across the entire image area.
>
> As to the overall sharpness quality of the 100/2.8, my particular
> sample, which is the immediate precurser to the blacknosed version, is
> as sharp as the 100/2.
>
>
Gotcha. So I need to do some inquiries before bidding. Is there a chart
somewhere that shows the breakdown of "era" by SN?
--
Paul Braun
Music Junkie
"Music washes from the soul the dust of everyday life." -- Harlan Howard
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|