Canon VB-S30D MKII, Руководство по эксплуатации

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134
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Setting the Exposure
(1) Exposure Mode
Select from [Auto], [Manual], [Auto (Flickerless)] or
[Auto (Shutter-priority AE)].
If [Auto] is selected for [Day/Night] under [Camera] in
the Setting page (p. 43), select [Auto], [Auto
(Flickerless)] or [Auto (Shutter-priority AE)].
[Auto]
The exposure is controlled automatically.
[Manual]
The exposure is set by adjusting the shutter speed
and gain values manually.
[Auto (Flickerless)]
In this mode, video flickering caused by fluorescent
lights, etc., can be reduced. The shutter speed is
automatically adjusted according to the brightness
of the environment in which the camera is used.
[Auto (Shutter-priority AE)]
In this mode, the desired shutter speed can be
specified.
(2) [Exposure Compensation]
When [Auto], [Auto (Flickerless)] or [Auto (Shutter-
priority AE)] is selected for [Exposure], the exposure
compensation value desired can be selected from
nine levels (-4 to +4) using the slider.
To darken the video, select a negative value. To
brighten the video, select a positive value.
(3) [Metering Mode]
When [Auto], [Auto (Flickerless)] or [Auto (Shutter-
priority AE)] is selected for [Exposure], the metering
mode can be selected from [Center-Weighted],
[Average] or [Spot].
For an explanation on each item set in [Metering
Mode], see [Metering Mode] in the Setting page
(p. 42).
(4) [ S hutter S peed]
When [Manual] or [Auto (Shutter-priority AE)] is
selected for [Exposure], select the shutter speed
desired. If [Manual] is selected, set the shutter speed
in the range of [1/1 sec] to [1/16000 sec] from a pull-
down menu. If [Auto (Shutter-priority AE)] is selected,
set the shutter speed in the range of [1/2 sec] to [1/
16000 sec] from a pull-down menu.
When capturing a moving subject, selecting a higher
shutter speed can reduce blurry video capture.
(5) [ S low S hutter]
You can set slow shutter if [Exposure] is set to [Auto]
or [Auto (Flickerless)]. Select a value in the range of
[1/2 sec] to [1/30 sec] from the pull-down menu.
As slower shutter speeds generate afterimages when
capturing a moving subject, select an appropriate
time according to the capture conditions.
(6) [Gain]
If [Manual] is selected for [Exposure], set a desired
gain value.
Moving the slider to the left decreases the gain
(sensitivity to brightness) and darkens the video.
Moving the slider to the right increases the gain and
brightens the video.
Important
• If it is set in the Admin Viewer, the same focus mode will
occur in the viewers of other users also.
• Setting the shutter speed at [1/1 sec] in manual exposure
(p. 134) will disable the [Auto] and [One-shot AF] focus
modes in Control for Admin. Switch the focus to [Manual] and
adjust it to your subject.
• Refer to the notes on p. 43 for focus ranges.
• Changes to focus mode in the Admin Viewer will not be
reflected in the settings on the setting page.
• Note that if you set the focus manually it will remain fixed.
(1)
(2)
(3)
(4)
(5)
(6)
Important
• If the subject is a traffic signal or electronic scoreboard, etc.,
the captured
video
may flicker.
In this case, try changing [Exposure] to [Auto (Shutter-priority
AE)] and then select a shutter speed lower than 1/100, to see
if the situation improves.
• [Exposure Compensation] and [Manual] for [Exposure]
cannot be selected if [Smart Shade Control] is set to [Auto].
• The [BLC] button is not available if [Exposure] is set to
[Manual].
• Even if [Exposure] is set to [Auto (Flickerless)], some screen
flicker may still occur under unstable light source conditions.