Ricoh Pentax К-1 - Manual (Page 111)

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The shutter can be released even if the aperture ring of the D
FA, FA, F, or A lens is not set to the 9 position or a lens without
an 9 position is attached.
Select [Enable] in [26 Using Aperture
Ring] of the E4 menu.
The following restrictions apply depending on the lens being
used.
t Memo
• If the aperture ring is set to a position other than 9, the
camera operates in J mode regardless of the mode dial
setting except when set to L, M, or N mode.
• [F--] appears for the aperture indicator in the status screen,
Live View screen, and viewfinder, and on the LCD panel.
Lens Names and Mount Names
• DA lenses with a motor and FA zoom lenses with a power
zoom use the KAF2 mount. (Of these lenses, the lenses
without an AF coupler use the KAF3 mount.)
• FA single focal length lenses, DA and DA L lenses without
a motor, and D FA, FA J, and F lenses use the KAF mount.
Refer to respective lens manuals for details.
Mount
Lens
Name
Lens Type
MF
S S
For 35mm full-frame size K K, M
KA A
AF
KAF
D FA
For both 35mm full-frame size
and APS-C size
DA
For APS-C size
Without the aperture ring
FA
For 35mm full-frame size
Power zoom not compatible
FA J
For 35mm full-frame size
Without the aperture ring
F For 35mm full-frame size
KAF2
DA
For APS-C size
SDM compatible
Without the aperture ring
FA
For 35mm full-frame size
Power zoom compatible
KAF3
D FA
For both 35mm full-frame size
and APS-C size
DA
For APS-C size
Dedicated for SDM
Without the aperture ring
Using the Aperture Ring E 4
Lens Restriction
D FA, FA, F, A, M (lens
only or with automatic
diaphragm
accessories such as
auto extension tube K)
The aperture remains open.
The shutter speed changes in relation
to the open aperture but an exposure
deviation may occur.
D FA, FA, F, A, M, S
(with diaphragm
accessories such as
extension tube K)
Pictures can be taken with the set
aperture value but an exposure
deviation may occur.
Manual diaphragm
lens such as reflex
lens (lens only)
FA SOFT 28mm/
FA SOFT 85mm/
F SOFT 85mm
(lens only)
Pictures can be taken with the set
aperture value in the manually
adjustable aperture range.
26 26
25 25 1 1
1 1
2
2
Using Aperture Ring Using Aperture Ring
Disable Disable
Enable
Enable
Shutter will release when Shutter will release when
aperture ring is not set to the
aperture ring is not set to the
"A" position
"A" position
OK OK Cancel Cancel