The Canon Zoom Lens FD 35-70mm 1:4 AF was a fine zoom lens for Canon's F-Series SLRs.

It is applicable with the FD lens mount or FD lens adapters. With its appeareance in 1981 it announced
the era of autofocus SLRs. The extra housing around the lens contained the AA batteries, the electronics
including a kind of opto-mechatronical rangefinder and the focusing motor drive.