Pentax 21660, 21717, 21740, 21580, 21650 About the DA lens mount, KAF-mount KAF2-mount KAF3-mount

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About the DA lens mount

The DA lens is an interchangeable lens specifically designed for the PENTAX digital SLR cameras.

There are three mounts for the DA lens, the KAF, KAF2 and KAF3.

KAF-mount KAF2-mount KAF3-mount

AF coupler	Lens-information	AF coupler Lens-information	Lens-information
	contacts	contacts	contacts
		Power supply contacts	Power supply contacts
		Lenses with a supersonic motor	Lenses with a supersonic motor
			(supersonic motor only)

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.