On 12/2/2010 6:48 PM, Eric Weir wrote:
On Dec 2, 2010, at 11:21 AM, Igor Roshchin wrote:

I've used two TC's: A2X-S and F 1.7X AF,
both mostly for "macro" (or close-distance) shots.

Here is an example of my first use of the A2x-S (with a zoom - since you
asked):
http://www.komkon.org/~igor/PHOTOS/WildAnimalPark/IMGP5086w2.jpg
It was shot with *istDS.
For detail, see this old post of mine:
http://www.mail-archive.com/[email protected]/msg387319.html
(The link to the photo is updated here.)
Neat, Igor. And thanks for the link to the thread, which made me chuckle.

I like both TC's. However, since I got my hands on the 1.7X AF,
I prefer it. The AF adds some convenience.
(E.g. I tried it recently in Sydney with Rob's 300/2.8, while shooting
surfers and it was nice! - I hope to use the upcoming break to work
on the photo backlog.)
Dumb question now. I think I know the answer without thinking about it very 
hard. Nevertheless: Can a teleconverter add functionality to a lenses, e.g., 
give on-camera control of aperture to an M lens?

A properly designed one could, but any currently available? Err no. The AF 1.7x adapter does add limited auto focus to even M42 .lenses however.

------------------------------------------------------------------------------------------
Eric Weir
Decatur, GA  USA
[email protected]







--
Where's the Kaboom?  There was supposed to be an Earth-shattering Kaboom!

        --Marvin the Martian.


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