Thomas Haegin wrote:
>I had a used Tokina AT-X 80-200mm F2.8 in [...] Konica mount. It is
>indeed quite heavy, but compact. It made a very solid impression.
>
>The one thing that eeked me was that whereas on the Zuiko's (and my Tamron
>300), you close the f-stop by turning the ring clock-wise (when you're
>shooting), but on the Tokina you have to turn the ring counterclock-wise. I
>would personally prefer that all my lenses "work in the same direction".
Aah, a fellow who pays attention to details... I like him already! :-)
Good news, Thomas -- there is no need to worry: Tokina's AT-X lenses
were matched to the cameras they were intended for, i.e. an AT-X lens
in a particular mount focusses and changes apertures in exactly the
same direction as the OEM lenses.
This was a fairly late development in aftermarket lenses, and was
usually reserved to the "prestige" lines, as such matching is not cheap
(more models, parts, etc.). Among other aftermarket lens makers, I am
only aware of Sigma doing the same matching -- for their slightly more
expensive "Greek Letter" line. I don't believe Vivitar did this,
thougfh some of their zoom lenses were "filter-size matched", e.g.
the last 70-150mm F3.8 model.
Naturally, Tamron could never implement "directional matching" on its
Adaptall-2 lenses (do I need to explain this?). Luckily for us Zuiks,
Tamron chose its focusing/aperture angular motions to be identical to
those of Zuiko lenses. :-)
Cheers,
/Gary Schloss.
Studio City, California, USA
schloss@xxxxxxxxxxxxxx
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