Pentax IST DS2 - Manual (Page 183)

181
6
Appe
ndix
Lens names and mount names
FA prime lenses (non-zoom lenses) and DA, D FA, FA J and F lenses use
the K
AF
mount. Of the FA zoom lenses, power zoom enabled lenses use
the K
AF
2 mount. Lenses without power zoom use the K
AF
mount. See the
lens manual for details. This camera does not have a power zoom
function.
Lenses and accessories that cannot be used with this camera
When aperture ring is set at other than s (Auto) or a lens without a s
(Auto) position or accessories such as an auto extension tube or auto
bellows are used, camera does not operate unless [Using aperture ring] is
set to [2 Permitted] in the [A Custom Setting] menu (p.101). Refer to
“Notes on [Using Aperture Ring]” (p.182) for restriction that apply when
[Using aperture ring] is set to [2 Permitted] in the [A Custom Setting]
menu.
All camera exposure modes are available when using DA/FA J or lenses
with Aperture s (Auto) position set to that position.
Lens and Built-in Flash
The built-in flash cannot be regulated and fully fires when pre A lenses or
soft lenses are used.
Note that the built-in flash cannot be used as the Auto Flash.