Attaching the lens – Pentax *ist IST DS User Manual
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etting
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Attaching the Lens
All camera exposure modes are available when using DA, D FA, FA J or 
other lenses with Aperture s (Auto) position. Some functions are 
restricted when not set to Aperture s (Auto). Also see “Notes on [Using 
Aperture Ring]” (p.179). Other lenses and accessories will not be available 
with factory default settings. Allow shutter release when using aperture 
ring in custom function settings. (p.101)
1
Check that the camera is off.
2
Remove the body mount cover 
(
) and lens mount cover (
).
Be sure to put the lens down with the 
lens mount side facing upward to 
protect from damage to the area 
around the lens mount after removal.
3
Align the red dots on the 
camera and the lens, and 
secure by turning the lens 
clockwise until it clicks.
After attaching, check that the lens is 
secured. Also check that the red dots 
of the lens are on top and attachment 
portion does not move sideways.
Turn the camera off before attaching or removing the lens to prevent 
unexpected lens movement.
1
2
1
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