Table of Contents
Advertisement
On-Screen Display (OSD)
the camera to handle extreme contrast (i.e. when pointing to the moon) without an
auto iris lens and still provide good smear free image, vital when used through a
telescope.
Shutter speed and auto iris ranges can be set by the user to optimise the final image.
Amateur astronomers are likely to find this mode more useful than super dynamic
when the camera is directly connected and sees through the telescope or when a
manual camera lens is used.
H
owever if the camera is equipped with a good auto iris lens the static dynamic range
will be furthe
r extended to 40,000,000. Such a dynamic range will allow the camera to
see from direct sun light to star light, and provide excellent exposure and colour
rendering.
BACK LIGHT: Backlight Compensation (BLC) can be switched to ON or OFF. BLC
allows the user to compensate for strong background lights that need to be accounted
for during viewing sessions. Thi
s can be achieved by setting any of the 48 portions of
th
e 8x6 LCD matrix to compensate for strong backlight that would normally
underexpose oth
er parts of the image.
By blocking certain parts of the image the camera will take
all its measurements from the non-blocked parts resulting in
h
igher quality results by excluding overwhelming light
sources.
This can also be used to deliberately overexpose parts of the
image by forcing
the camera to take measurements from
da
rker image areas.
AGC: Automatic Gain Control (AGC) (ON/OFF) or MANUAL mode. In automatic
mode your Opticstar camera adjusts gain automatically. As a rule of thumb high gain
values when in AGC in ON will produce noise. To eliminate noise under any situation
simply switch o
n your camera's cooling sub-system and enjoy your Opticstar camera
to
the full. Please note that only VORTEX and ICE models incorporate cooling.
W/B SELECT: This allows the user to select between Auto Trace White Balance
(ATW), One Push Auto White Balance (AWC) and MENU mode.
In
ATW mode the camera will execute White Colour Balance adjustment
automatically. If AWC mode is
selected the user can fix the current White Colour
Balance by selecting the mode and pressing the selection button. If the MENU option
o
o
is selected values can be selected from a list of two (5600
K, 3200
K) or custom
values can be set the user by selecting
MANUAL in terms of the RED and BLUE
c
omponents.
SYNC: This mode is only applicable to cameras with VD-Lock
© Opticstar Ltd 2003, 2004
14
Advertisement
Table of Contents
