17
MK20HD PLUS / MK20W
English
OPERATING PRECAUTIONS
Shoot under the proper lighting conditions
To produce pictures with eye-pleasing colors,
shoot under the proper lighting conditions.
The pictures may not appear with their proper
colors when shooting under fluorescent lights.
Select the proper lighting as required.
To ensure a stable performance in the long term
Using the unit for prolonged periods in locations
where the temperature and humidity levels are
high will cause its parts to deteriorate, resulting
in a reduction of its service life.
(Recommended temperature: Max. 35 °C [95 °F])
Ensure that a cooling unit or heating unit will
not blow any air directly toward the installation
location.
Image persistence on the CMOS sensor color filters
If parts of the CMOS sensor are exposed
continuously to spotlights or other bright lights,
the color filters inside the CMOS sensor will
deteriorate, and the parts concerned may
become discolored. The discoloration may
be noticeable when the direction of fixed
monitoring is changed.
Do not point the camera at strong light sources
When parts of the CMOS sensor are exposed
to spotlights or other strong lights, blooming (a
phenomenon where the edges of strong lights
become blurred) may occur.
High‑brightness subjects
Flare may occur if an extremely bright light
source is pointed at the lens. In a case like this,
change the angle or take some other remedial
action.
When using the automatic functions
● If “Full Auto” has been selected as the setting
for Scene on the camera menu, for example,
all the auto settings will be turned on, and
manual operations will no longer be possible
for some of the items.
● When using the auto white balance function
under fluorescent lights, the white balance
may vary.
● In some situations, it may be hard to focus at
the auto setting. In cases like this, select the
manual setting, and focus manually.
● The appropriate brightness may not be
obtained when shooting bright objects using
the auto settings for the gain and iris. In cases
like this, set the shutter speed to manual, and
adjust.
Zooming and focusing
When the focus is set manually, out-of-focusing
may occur during zooming.
After zooming, if necessary, either adjust the
focus or set the focus to auto.
When using the focus at the manual setting,
proceed with zooming after setting the focus
position at the Tele end where the focusing
accuracy is higher.
Concerning the zoom position when the
power is turned on
When the unit’s power is turned on, the zoom,
focus and iris return to the positions they
occupied immediately before the power was
turned off. (This happens for the focus and iris
when they are set manually.)
However, this position may not be restored if,
for instance, the power cable was disconnected
during operation.
