screw drive Stangenantrieb

Creator:	TTilch
Language pair:	英語からドイツ語
Discipline:	写真撮影/イメージング(& グラフィックアート)
Definition / notes:	Most older lenses are \"screw drive\" and need an in-body AF drive motor. With a camera body with this capability you can use most older lenses. Without it you will not be able to use AF. The link between the body and the lens is very like that between a screwdriver and a screw. Most of the older AF Nikkors, Minolta As/Sony αs and Pentax AF lenses use that drive system. Newer lenses tend to have their own autofocus motors and are driven by the body electrically rather than mechanically. The Canon EF mount has always had in-lens focus motors.
URL:	https://photo.stackexchange.com/questions/26716/what-are-screw-drive-lenses