I've never used this combination, but do own both the older, one-touch ATX
100-300 f4 and the 1.7 AF converter.
I just tried the combo with both the Mz-S and a Pz-20 body.
AF works but at the 300 end of the zoom the AF rand is limited. You would
have to manually focus to within about 1 meter of the required focus
distance, and then the AF adapter could pick up the rest of the
focusing. Note that I was focusing on a lamp in my living room (its dark
outside right now). I was pretty close to the minimum focusing distance
and the amount of manual focusing may be much less at further distances.
This seems to be a basic limitation of the AF adapter. When you get into
longer focal lengths it just does not have the range for focusing that you
need. But a comibination of rough manual focusing with the adapter picking
up the difference works fine.
I did not take any actual pictures to test the quality of this combo. I
have tried using my ATX with teleconverters, and have not been happy with
the results. I'll also break from the consensus here and say that I don't
consider the 1.7 AF converter to be all that good. When I combine mine
with a 50mm f1.4, point it at a bright shiny object in the sun, and
de-focus I see all sorts of wild rainbow / prism patterns. This is
consistent with different lenses.
But, I may have a bad sample.
Hope this helps!
- MCC
At 09:01 AM 9/19/01 +0200, Erik wrote:
>I have an opportunity to buy a 1.7 AF converter (from another PUG member
>here in Sweden, by the way - guess who). The obvious use for it right now
>would be together with my MZ-3 and the Tokina AT-X 100-300/4 MF zoom (great
>lens, by the way). Anybody got any experience from that particular
>combination?
>
>I know the converter is specified to work with lenses from f2.8, but that
>some f4-lenses also work fine.
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Mark Cassino
Kalamazoo, MI
[EMAIL PROTECTED]
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Photos:
http://www.markcassino.com
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