On Sun, Sep 25, 2022 at 10:58 AM Wayne Shumaker <om3ti@xxxxxxxx> wrote:
> At 9/25/2022 06:14 AM, Mike wrote:
> > The Z 85/2 seems to tolerate some extension nicely for macro due to
> the floating element design. The CV 90 in OM mount is better in that
> capacity, however.
>
> I believe this is correct, from what I have searched online. Supposedly
> the floating element was to improve the lens for closer focus and be better
> for portraits.
>
> <snip>
>
> so the 5 element version, supposedly sharper, could be 115,000 and later.
>
My recollection from Gary Reese's tests is that the SC version was a little
sharper at f2 and up, the MC version sharper at f16 down. I suspect this
is one of his earlier tests with an OM-1. In his later tests he used a
body capable of "timer" MLU (in some cases an OM-2000). Those were the
days.
Joel W.
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|