Product specifications

The Shutter Speed menu is used to scroll through the various speed options on
the camera’s automatic shutter (default setting is automatic). As with all electronic
shutters, higher speeds reduce light sensitivity without affecting the optical depth
of field, as opposed to an iris adjustment.
On the 22x and 23x zoom cameras, the shutter speed can be selected for auto-
exposure with digital slow shutter or auto exposure with shutter priority. They
function as follows:
• Auto-exposure with digital slow shutter: This mode will automatically, and
continuously, adjust the shutter speed down to its slowest setting under
low light conditions. The actual selected setting will be prefixed with an
AUTO. This setting is the minimum digital slow shutter. The operator may
select the slowest setting to prevent the digital slow shutter from operating
while still maintaining auto-exposure.
• Auto-exposure with shutter priority: This mode allows auto exposure to
operate under the fixed shutter settings selection. These settings have no
prefix. The following are the available speeds:
SHUT T ER
TYPE
SHUTTER SPEEDS, 22X and 23X CAM ERAS (s e conds )
DIGITAL
SLOW
SHUTTER
Auto-1/2
(Auto-1/1.5 PAL)
Auto-
1/4
Auto-
1/8
Auto-
1/15
Auto-
1/30
Auto-
1/60
SHUT T ER
PRIORITY
1/2
(1/1.5 PAL)
1/4 1/8 1/15 1/30 1/60 1/120 1/180 1/250 1/500 1/1000 1/2000 1/4000 1/100001/30000
AUTO 1/60 1/125 1/250 1/500 1/725 1/1500 1/3000 1/6000 1/10000
SHUTTER SPEEDS, 18X
The Auto Gain Control sub-menu (not available on 18X) allows adjustment of
Maximum AGC Tuning Value, another sliding scale adjustment. This selects the
relative effect of the Automatic Gain Control (AGC). Higher settings increase light
sensitivity but boost noise as well.
The V Phase Adjust screen is designed to synchronize the vertical phase of the
camera (relative position in time when the camera starts to scan the image) with
other cameras in a system. When two cameras are synchronized, there is no
picture “roll” when switching from one camera to another. This adjustment is also a
sliding scale, from 0
o
to 360
o
. When set to 360
o
, the Camera will be locked to an
internal crystal.
XX134-40-00 Rev 104 SurveyorVFT Camera Dome Programming Programming Menus • 9