Pentax K-X Operating Manual page 67

When [ 22. U sing A perture Ring] issetto
[Permitted] inthe [CCustom S etting 4]
menu, the shutter can bereleased even ifthe
aperture ring oftheDFA, F A, F orAlens is
not s ettotheA (Auto) position oralens
without anA position isattached. However,
the features will b erestricted asshown below.
_. Using Aperture Ring
1 Prohibited
Shutter will release when
aperture ring is not set to the
"A" position
Restrictionson usinglenses with apertureringsetto apositionother than A
Lens Used , Exposure
I
Restriction
• Mode .
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)
Manual diaphragm lens such
as reflex lens (lens only)
FA, F SOFT 85mm, FA
SOFT 28mm (lens only)
Av (Aperture
Priority) mode
Av (Aperture
Priority) mode
Av (Aperture
Priority) mode
Av (Aperture
Priority) mode
M (Manual)
mode
All lenses
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 the
specified aperture value but an
exposure error may occur. In the
viewfinder, [F--] appears for the
aperture indicator•
Pictures can be taken with the
specified aperture value in the manual
aperture range. 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•
Pictures can be taken with the set
aperture value and shutter 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 in Av (Aperture Priority) mode regardless Of the mode
dial setting other than M (Manua!) mode when the aperture is set to other than
the A position.