Pentax 15635, 15613, 15624, 15758, 15646, 15679, 15698, 15668, 15656, 15667 Using the Aperture Ring, 259

23. Using Aperture Ring

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 s position or a lens without an s position is attached.

Select [Enable] in [23. Using Aperture Ring]

of the [ACustom Setting 4] menu.1 Disable

2 Enable

			Shutter will release when
			aperture ring is not set to the
			"A" position
			MENU Cancel	OK OK
The following restrictions apply depending
on the lens being used.
Lens Used	Capture		Restriction
	Mode
D FA, FA, F, A, M (lens only		The aperture remains open regardless of
		the aperture ring position. The shutter
or with automatic
		speed changes in relation to the open
diaphragm accessories	c
such as auto extension		aperture but an exposure deviation may
		occur. [F--] appears for the aperture
tube K)
		indicator.
D FA, FA, F, A, M, S (with		Pictures can be taken with a specified
diaphragm accessories	c
such as extension tube K)		aperture value but an exposure
		deviation may occur. [F--] appears for
Manual diaphragm lens such
	c	the aperture indicator.
as reflex lens (lens only)
		Pictures can be taken with a specified
FA, F SOFT 85mm, FA		aperture value in the manual aperture
		range. [F--] appears for the aperture
SOFT 28mm	c
		indicator.
(lens only)		The exposure can be checked with
		Optical Preview.
		Pictures can be taken with a set aperture
		value and shutter speed. [F--] appears
All lenses	a	for the aperture indicator.
		The exposure can be checked with
		Optical Preview.

259

10

Appendix

If the aperture ring is set to a position other than s, the camera operates in c mode regardless of the mode dial setting except when set to a or C mode.