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The Pentax FA lenses are primarily designed
to work with the Pentax autofocus SLR (K
AF-
or K
AF2-mount camera), making autofocus
shooting possible.
When Pentax FA Zoom lenses with power
zoom function are used on the Pentax K
AF2-
mount camera, the camera features a Power
Zoom system.
• An FA zoom lens without the power zoom
contacts are shown in the illustration does
not have the power zoom function.
• Do not damage or dirty the power contacts.
smc PENTAX F, FA and FA J LENSES
3
50
15
8
10
3
2
A
22
16
11
8
5.6
4
2.8
1.4
Focusing ring
Front-ring threads
Distance scale
Aperture ring
Depth-of-field scale
Aperture-A-lock button
AF coupler
Lens-information
contacts
Power zoom contacts
KAF-mount KAF2-mount