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Frame Integration Mode
Frame Integration and Cooling
High
ambient
temperatures
integration rates will both contribute to unacceptable
noise levels adversely affecting the quality of the
image. This is why cooling becomes necessary as
when the temperature of the CCD is kept low so is the
noise.
Air-cooled cameras will produce good results
significantly reducing noise where Peltier cooled
c
ameras are capable of eliminating noise all together
keeping the temperature of the CCD to several
degrees below freezing.
Opticstar 450C/450CD/650C - VORTEX
T
he Opticstar camera air-cooling subsystem will keep temperatures sufficiently low
and cool the CCD adequately to sufficiently reduce noise levels even at high frame
integration rates that are needed during deep sky viewing.
To switch on the cooling subsystem of your Opticstar camera you simply need to
power it up by rotating the knob on the side of your camera. You can use the knob to
alter the level of power to the air-cooling sub-system as required. It will take
approximately three minutes for the camera to reach optimum performance.
O
pticstar 450C/450CD/650C - ICE
The Opticstar camera Peltier cooling subsystem will keep temperatures several
degrees below freezing and cool the CCD to reduce noise levels dramatically even at
the highest frame integration rates that are needed during deep sky viewing.
To switch on the cooling subsystem of your Opticstar camera you simply need to
power it up by pressing in the red button on the side of your came
a
pproximately two to three minutes for the camera to reach optimum performance.
The camera will not benefit from its cooling subsystem to a noticeable degree when it
is not used in frame integration mode.
Please always e
nsure when your Opticstar camera is not in use that you switch off the
power and disconnect the camera adaptor from the power supply.
Caution: It is not uncommon that in an effort to keep the camera
temperature low some people place their cameras in a freezer sometimes
at sub zero temperatures prior to a viewing session. Note that such
practices can seriously damage your camera's electronic and optical sub-
systems. Opticstar will not be held responsible for damage caused to a
camera under such circumstances.
and
high
frame
© Opticstar Ltd 2003, 2004
ra. It will take
10
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