Pentax K-5 Operating Manual page 64

When [27.Using Aperture R ing] i s setto
[Permitted] inthe[C Custom Setting 4]menu,
theshutter c anbereleased e venifthe
aperture r ing oftheD FA,FA,ForAlensisnot
settotheA (Auto) p osition o r a lenswithout
anA position isattached. However, some
features w illberestricted a sshown below.
1 Prohibited
Shutter will release when
aperture ring is not set to the
"A" position
Restrictions on using lenses with aperture ring set to a position other
than A
D FA, FA, F, A, M (lens
only or with auto
diaphragm accessories
such as auto extension
tube K)
D FA, FA, F, A, M, S (with
diaphragm accessories
such as extension tube K)
Manualdiaphragm lens such
as reflex lens (lens only)
FA, F SOFT 85mm, FA
SOFT 28mm (tens only)
Alllenses
Av (Aperture
Priority)
Av (Aperture
Priority)
Av (Aperture
Priority)
Av (Aperture
Priority)
M(Hyper-
manual)
The aperture remains open regardless
of the aperture ring position. The
shutter speed changes in relation to
the open aperture but an exposure
error may occur. In the viewfinder,
[F--] appears for the aperture indicator.
Pictures can be taken with a
specified aperture value but an
exposure error may occur. In the
viewfinder, [F--] appears for the
aperture indicator.
Pictures can be taken with a specified
aperture value in the manual aperture
range, tn the viewfinder,
[F--] appears for the aperture indicator.
When the depth of field is checked
(Optical Preview), exposure metering
starts and the exposure can be checked.
Pictures can be taken with a set aperture
value andshutter speed. In the viewfinder,
[F--] appears for the aperture indicator.
When the depth of field is checked
(Optical Preview), exposure metering
starts and the exposure can be checked.
The camera oPerates inAv (Aperture Priority) modeeven ifth e mode dia! is at
m, P; SviTv orTAv when the aperture is set to other than the A position:
iiiiiiiiiiiiiiiiiiiiiiii