About Lenses With A Supersonic Motor - Pentax smc -DA Operating Manual

About lenses with a supersonic motor

The lenses in the table below are equipped with internal supersonic motors. When mounted
on a camera body that supports supersonic motors, the autofocus (AF) is quiet and
smooth.
• Supersonic motor compatible camera body
,
* If the firmware is version 1.30 or later, refer to page 10.
Lens
DA17-70mm f/4 AL [IF] SDM
DA 16-50mm f/2.8ED AL [IF] SDM
DA 50-135mm f/2.8ED [IF] SDM
DA 200mm f/2.8ED [IF] SDM
DA 300mm f/4ED [IF] SDM
* In both cases focusing can be done manually.
, *,
Lens uses a supersonic motor. When the lens is
mounted on a camera body that does not support
supersonic motors (including
firmware older than version 1.30), the autofocus
cannot be operated by either the AF motor in the
camera body or the supersonic motor.
When the lens is mounted on a camera body that
does not support supersonic motors (including
autofocus is operated by the AF motor in the camera
body.
Precautions
with firmware older than version 1.30), the
9 9
with