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PRECISION FOCUS LENSES
PF-BUILT-IN LENSES
Fujinon’s Precision Focus Assist
enables camera operators the
ability to ensure fast accurate
focusing of high definition images
under varying conditions. The PF
system is the first to incorporate
Fujinon’s patented system which
utilizes a unique contrast method of
achieving precise focus.
FEATURES AND FUNCTIONS
Contrast focusing method
The Precision Focus System adopts a contrast method that
utilizes differences in optical path length. It can instantly
focus the image without searching for focus and can maintain
precise focus even when following moving objects.
CCD A and CCD B
are built into the lens
barrel to detect the
focusing conditions
and are positioned
at equal distances
before and after the
camera image form-
ing plane.
CAN BE MOUNTED
ON ANY 2/3” CAMERA
The PF function is built into the lens and can be operational
with the lens mounted on a 2/3” camera with no additional
settings or optional devices. Camera software provides
additional viewfinder information on some cameras.
FOCUS MODE SELECTION
The momentary mode provides for PF function only when
pressing the button or the continuous mode may be selected
for continuous PF function. These two modes of operation
provide precise focusing according to the shooting situation,
whether a still or moving image.
FOCUS AREA SETTING
When the PF lens is mounted on a
camera, a focus area is shown on
the viewfinder. The size and the
position of the focus area can be
changed at the camera operator’s
discretion. This function allows
greater flexibility in the selection
of the focus area depending on the
type of production.
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