CAUTION WHEN OPERATING MINOLTA AND PENTAX MODELS
When the focusing ring is set in the manual focus position while the camera is set in
the AF mode, the focusing ring rotates as if it were in autofocus mode. Turning of the focus
ring in this instance may cause damage to the lens and/or the camera.
Do not force the focusing ring when it is set in the manual focus mode. Manual rota-
tion of the focus ring when the camera is still set in the autofocus mode (AF) will cause
mechanical damage to the lens and/or to the camera body.
MANUAL FOCUS (MF)
Nikon and Canon models: Simply move the focusing ring backward to the MF position.
Minolta and Pentax models: Switch the AF/MF selector switch on the camera body to MF
mode then, slide the focusing ring backward to the MF position.
MANUAL FOCUSING OPERATIONS
Rotate the focusing ring manually while looking through the viewfinder until the image in
the finder comes into sharp focus.
When the focusing ring is set to the AF position, the focusing ring rotates freely and
you cannot adjust focus.
If you use the lens in the manual focus mode on an autofocus camera, rotate the
focusing ring while holding the shutter release button depressed halfway. The focus confir-
mation indicator will light when subject comes into focus.
The focusing ring of this lens of this lens rotated beyond the infinity position in order
to properly focus to infinity under a variety of environmental conditions. When manually
focusing, make sure the subject at infinity is sharp in the viewfinder.
APERTURE (Fig. 4 and 5)
Canon and Minolta models
Lens apertures are set and controlled by the camera by the camera according to the mode
set on the camera body.
Nikon and Pentax models
When photographing in the programmed AE or the shutter-speed-priority AE mode, rotate
the aperture ring to the minimum opening (f/22) position on the Nikon model and to AE
position on the Pentax model by depressing the AE lock button. The aperture ring will auto-
matically lock in position. To switch to the aperture-priority AE or manual-exposure-control
mode, rotate the aperture ring to any desired f-number by depressing AE (minimum aper-
ture) lock button. In case of the Nikon F401 and/or F50 series cameras, the aperture can be
set on the camera body when the lens aperture ring is set in the minimum aperture posi-
tion.
