ATIK Cameras Horizon Посібник - Сторінка 7

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Cable Post

Your Atik Horizon comes with a cable post and cable tie to help you secure your connections and

minimise cable strain and clutter at the telescope. If you would like to use the cable post, simply

screw it in to the cable post thread on the back plate of the camera, and use the supplied cable tie

to secure your cables. They should be tight enough to reduce flexure, but not so tight as to put any

strain on the connections.

The Atik Horizon has a regulated cooling system, meaning that the CMOS sensor can be kept at

your desired temperature throughout an imaging session. This also makes it easy to take dark

frames at the same temperature as your light frames.

The cooling delta of the Atik Horizon is -40°C. Please note that the cooling delta is how far below

the ambient temperature the camera can achieve, rather than a fixed temperature it can cool to.

This means the best temperature to image at will depend on your environment, and we recommend

using a repeatable, stable temperature, rather than simply the maximum the camera can reach on

a given night.

After switching on the camera, it's advisable to allow up to 5 minutes before taking images so that

the temperature can stabilise. At the end of an imaging session, turn off the cooling and allow a few

minutes before disconnecting the camera so that it can complete its warm up sequence.

To get the most out of your Atik Horizon for astrophotography, we recommend processing your

images using dark frames. You can take dark frames by covering the front of the camera with a lens

cap. Dark frames should be taken at the same temprature, exposure length and with the same gain

and offset settings as your light frames.

A master dark should be generated by averaging a large number of individual dark frames. This can

then be subtracted from the individual image sub frames during processing. Further information on

using dark frames should be available in the manual of whichever image processing software you

choose to use.