About Lenses With A Supersonic Motor - Pentax 17-70mm - 17-70mm f/4 DA SMC AL IF SDM Lens Operating Manual

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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 11.
Lens
DA 55mm f/1.4 SDM
DA17-70mm f/4 AL [IF] SDM
DA 60-250mm f/4ED [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.
, ,
• The lens uses a supersonic motor. When the lens
is mounted on a camera body that does not
support
the autofocus cannot be operated by either the
AF motor in the camera body or the supersonic
motor.
• If using the lens with the following cameras, and
the power is turned on, MF appears in the monitor,
but it does not interfere with AF operations.
When the lens is mounted on a camera body that
does not support supersonic motors (including the
autofocus is operated by the AF motor in the camera
body.
, *,
Precautions
supersonic
with firmware older than version 1.30),
,
with firmware older than version 1.30), the
motors (including
, ,
the