ATIK Cameras 11000 Quick Start - Manual (Page 8)

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Cooler control (supported models)
Cooler control is available on some models,
such as the Atik 34L+ and the large-format
series. Before starting your imaging session,
you should activate the cooler and select
the required operating temperature, keep-
ing in mind the cooling capacity of your specific camera model (for
example, the Atik 4000 can provide cooling of up to 40ºC below
ambient - please see page 3).
The first image
To begin, centre your telescope visually on a
moderately bright star. Put the camera on the
telescope’s focuser and press the F key. This
will immediately initiate an exposure of 0.s.
When the exposure is complete, you should
see a strongly defocused star on your computer
screen. Congratulations! Everything is working
as expected. If the star is grossly saturated (a
completely white circle), then you should manu-
ally select a shorter exposure in the Exposure
window.
Focusing
Depending on how out-of-focus the star is, click on the Sub-frame
button and select an area around the star. This will limit the size of
the image which needs to be downloaded to the computer, making