Nikon J1 - Manual (Page 22)

10
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A Face-Priority AF
The camera detects and focuses on portrait
subjects (face-priority AF). A double yellow
border will be displayed if a portrait subject is
detected facing the camera (if multiple faces,
up to a maximum of five, are detected, the
camera will select the closest subject). Press
the shutter-release button halfway to focus
on the subject in the double yellow border. The border will clear from
the display if the camera can no longer detect the subject (because, for
example, the subject has looked away).
A Movie Recording
In still image mode, movies can not be recorded and pressing the
movie-record button has no effect.
A Lenses with Retractable Lens Barrel Buttons
Lenses with retractable lens barrel buttons
can not be used when retracted. To unlock
and extend the lens, keep the retractable
lens barrel button pressed (q) while rotating
the zoom ring (w). The lens can be retracted
and the zoom ring locked by pressing the
retractable lens barrel button and rotating
the ring in the opposite direction. Retract the lens before removal, and
be careful not to press the retractable lens barrel button while attach-
ing or removing the lens.