FujiFilm IS Pro, Owner'S Manual

Page: 64 / 244

64
Focus
The AF-assist illuminator
The built-in AF-assist illuminator enables the camera to
focus even when the subject is poorly lit. The camera
must be in focus mode
S (single-servo autofocus), an AF-
Nikkor lens must be attached, and the center focus area
or focus area group must be selected or closest subject
priority in effect. If these conditions are met and the
subject is poorly lit, the illuminator will light automatically
to assist the autofocus operation when the shutter button
is pressed halfway.
CAUTION
After the AF-assist illuminator has been used for several
consecutive shots, it may turn off briefly to protect the
lamp. The illuminator can be used again after a short
pause. Note that the illuminator may become hot with
continuous use.
MEMO
• For the AF-assist illuminator to function correctly, the
lens must have a focal length of 24-200 mm and the
subject must be in range of the illuminator. Lens hoods
should be removed. With most lenses, the illuminator
has a range of about 0.5-3 m (1 ft. 8 in.-9 ft. 10 in.).
• AF-assist is not available with the AF-S VR ED 200-400
mm f/4G.
Z
Lenses for which vignetting occurs
• Autofocus using the camera’s AF-assist illuminator
cannot be performed due to vignetting with the following
lenses at shooting distance within 0.7 m (2 ft. 4 in.):
- AF Micro ED 200 mm f/4D
- AF-S ED 28-70 mm f/2.8D
- AF-S VR ED 24-120 mm f/3.5-5.6G
- AF Micro ED 70-180 mm f/4.5-5.6D
• Autofocus using the camera’s AF-assist illuminator
cannot be performed due to vignetting with following
lenses at shooting distance within 1 m (3 ft. 3 in.):
- AF-S DX ED 55-200 mm f/4-5.6G
• Autofocus using the camera’s AF-assist illuminator
cannot be performed due to vignetting with following
lenses at shooting distance within 1.5 m (4 ft. 11 in.):
- AF-S VR ED 70-200 mm f/2.8G
- AF ED 80-200 mm f/2.8D
- AF-S ED 80-200 mm f/2.8D
• Autofocus using the camera’s AF-assist illuminator
cannot be performed due to vignetting with following
lenses at shooting distance within 2.5 m (8 ft. 2 in.):
- AF VR ED 80-400 mm f/4.5-5.6D