According to Thom Hogan:
http://www.bythom.com/autofocus2.htm
In case you've never read that before.
According to Thom Hogan:
http://www.bythom.com/autofocus2.htm
In case you've never read that before.

Thanks for the link, Desmond.
thanks
Ray
Interesting read. I find it interesting that his comments refer mostly to technique that can be applied to any camera.
Andrew