JVC VN-V686U Instructions Manual page 11

Auto Focus
This unit is equipped with One Push Auto Focus
and Easy AF Auto Focus functions. However,
depending on the object and the camera setting,
it might be out of focus. In this case, please
adjust the focus manually.
● Objects which are difficult to be focused
automatically
● When the brightness of the image plane is
extremely high (bright)
● When the brightness of the image plane is
extremely low (dim)
● When the brightness of the image plane is
constantly changing (for example, a
blinking light)
● When there is almost no contrasts.
● When there are repetitive vertical striped
patterns on the image plane
● Auto Focus is difficult to set under the
following conditions
● When sensitivity is increased with AGC
and the screen is grainy
● When there is less movement on the
screen due to the Sense Up function.
● When there is no contour element in
electronic zoom
Zoom Operation
The following phenomena are the result of the
built-in lens performance and are not
malfunctions.
● When manual operation or preset is
selected, focus moves slightly after the
zoom operation has stopped near the
TELE edge.
● Manual zoom operation is not smooth.
● When Preset is selected, the camera
becomes out of focus for an instant during
zooming.
Preset Positions
The total number of preset positions that can be
set in this unit is 100, including the home position
and 99 preset positions.
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