About The Da Lens Mount - Pentax 17-70mm - 17-70mm f/4 DA SMC AL IF SDM Lens Operating Manual

About the DA lens mount

The DA lens is an interchangeable lens specifically designed for PENTAX digital SLR cameras.
There are three mounts for the DA lens, the K
K -mount
AF
AF coupler Lens information
contacts
Refer to the next page for more information on lenses with supersonic motors.
CAUTION
Be careful not to damage or dirty the lens mount surfaces as this can result in failure
or malfunction.
, K
AF AF2
K -mount
AF2
AF coupler
Lens information
contacts
Power supply contacts
Lenses with a supersonic motor
and K .
AF3
K -mount
AF3
Power supply contacts
Lenses with a supersonic motor
(supersonic motor only)
9 9
Lens information
contacts