Pentax ist manual 143

Lenses	Exposure mode	Restriction
FA, F, A, M, S (lens	Aperture-Priority	The aperture remains wide
only, or with auto	AE mode	open regardless of the
diaphragm		aperture ring position. The
accessories such as		shutter speed varies according
auto extension tube		to the aperture ring position,
K		however, an exposure error
		may occur. Aperture value
		displays [F--] in the viewfinder
		and [AV--] on the LCD panel.
FA, F, A, M, S (with	Aperture-Priority	Pictures can be taken with the
manual diaphragm	AE mode	specified aperture value,
accessories such as		however, an exposure error
extension tube K		may occur.
Manual diaphragm	Aperture-Priority	Aperture value displays [F--] in
lens, such as reflex	AE mode	the viewfinder and [AV--] on
lens (lens only)		the LCD panel.
FA, F Soft 85mm	Aperture-Priority	Pictures can be taken with the
FA Soft 28mm	AE mode	aperture value manually
		specified, however, an
(lens only)
		exposure error may occur.
		Aperture value displays [F--] in
		the viewfinder and [AV--] on
		the LCD panel.
All lenses	Metered Manual	Pictures can be taken with the
		specified aperture value and
		shutter speed, however, the
		built-in light meter does not
		operate, therefore, the
		exposure cannot be
		evaluated. Aperture value
		displays [F--] in the viewfinder
		and [AV--] on the LCD panel.

143

BASIC OPERATION	(PREPARATION)
BASIC OPERATION	(SHOOTING)
ADVANCED OPERATIONS
OTHERS