<p>You mentioned DDR cameras. Have you seen the Praktica AF system? Well it wasn't really a system, just one B-mount lens. A Prakticar (made by Sigma) 55-200mm, which had the AF motor and sensor in the lens, some batteries too, 3 AAA if I remember correctly. AF activated with a half press of the shutter button, but there was nothing stopping you pressing the shutter all the way down before it focussed. Beeped when focussed. Speed was OK.</p>
1st and 2nd Generation Autofocus Cameras
in DSLR & Film Cameras
Posted