Using The Aperture Ring - Pentax K-1 Operating Manual

Lens Names and Mount Names
Lens
Mount
Name
S S
MF K K, M For 35mm full-frame size
KA A
For both 35mm full-frame size
D FA
and APS-C size
For APS-C size
DA
Without the aperture ring
KAF For 35mm full-frame size
FA
Power zoom not compatible
For 35mm full-frame size
FA J
Without the aperture ring
F For 35mm full-frame size
AF
For APS-C size
DA SDM compatible
Without the aperture ring
KAF2
For 35mm full-frame size
FA
Power zoom compatible
For both 35mm full-frame size
D FA
and APS-C size
KAF3
For APS-C size
DA Dedicated for SDM
Without the aperture ring
• 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.
Lens Type

Using the Aperture Ring

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.
Lens
D FA, FA, F, A, M (lens
The aperture remains open.
only or with automatic
The shutter speed changes in relation
diaphragm
to the open aperture but an exposure
accessories such as
deviation may occur.
auto extension tube K)
D FA, FA, F, A, M, S
(with diaphragm
accessories such as
Pictures can be taken with the set
extension tube K)
aperture value but an exposure
deviation may occur.
Manual diaphragm
lens such as reflex
lens (lens only)
FA SOFT 28mm/
Pictures can be taken with the set
FA SOFT 85mm/
aperture value in the manually
F SOFT 85mm
adjustable aperture range.
(lens only)
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.
E4
26 26 Using Aperture Ring Using Aperture Ring
1 1 Disable Disable
Enable Enable
2 2
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
Cancel Cancel 25 25 1 1 OK OK
Restriction
109
7