Ricoh PENTAX K-3 Mark III Faq page 48

Lens Names and Mount Names
Mount
S
MF K
A
KAF
AF
KAF2
KAF3
KAF4
-DA lenses with a motor and FA zoom lenses with a power zoom are categorized
for the KFA2 mount.
(Of these lenses, the lenses without an AF coupler are categorized for the KAF3
mount)
-The KAF3 mount equipped with an electromagnetic diaphragm mechanism instead of
an aperture control lever is referred to as the KAF4 mount.
-AF single focal length lenses, DA and DAL lenses without a motor, and DFA, FAJ, and
F lenses use the KAF mount.
Lens Name
S
K/M For 35mm full-frame size.
A
D FA For 35mm full-frame size.
DA For APS-C size, Without the aperture
ring
FA For 35mm full-frame size,
Power zoom not compatible
FAJ For 35mm full-frame size,
Without the aperture ring
F For 35mm full-frame size
DA For APS-C size, SDM compatible,
Without the aperture ring
FA For 35mm full-frame size,
Power zoom compatible
D FA For 35mm full-frame size
Dedicated for SDM,
Without the aperture ring
DA For APS-C size , De dicated fo r SDM,
Without the aperture ring
Lens Type
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