nikon's brochure seemed to suggest that its TC would not autofocus with the F70 http://www.nikonusa.com/specs/2129.pdf but I'm glad to say thats incorrect. Even if the F70 is using a 1-generation old AF sensor, the focussing is still pretty fast by my standards ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)