This might be why my K20 did not ask the focal length of my A* 300 ƒ4 when attached to the AF 1.7x tc. It should have, but perhaps it DID get something from the 300 as to focal length. Of course, the photos were soft on tripod, so maybe I should have gone to the Custom Functions and forced a 500mm reading. (There was camera movement, as the tripod was not my sturdiest)

On May 17, 2009, at 12:14 , Adam Maas wrote:

but also impractical to
evaluate all F and later lenses (A and earlier lenses don't identify
the model to the camera and therefore couldn't support the feature
in-camera)

Joseph McAllister
[email protected]

http://gallery.me.com/jomac
http://web.me.com/jomac/show.me/Blog/Blog.html






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