ATIK Cameras 3 Series Руководство пользователя - Страница 6
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Печатать страницуDue to the very clean nature of these CCDs, dark frames are unnecessary in
most cases. This is due to the low noise which stands at an amazing less than
5 electrons RMS.
3.3
Optical Window
The optical window used in front of the CCD is a BK7 with BBAR coatings on
both sides ensuring that no reflection will appear in your image.
3.4
Analog to Digital Converter (ADC)
The Analog to Digital Converter (ADC) is a 16-bit ADC. This means that your
Atik camera will allow you to record subtle levels of gray, providing you with
enhanced dynamic range when capturing an image.
3.5
Power Consumption
Your Atik camera was designed to have low power consumption: please see
the table in section 4 for details specific to your camera model. The 2.1mm
centre-positive DC input is compatible with a wide range of 12V DC supplies.
WARNING: If you have purchased the optional
please note that it is for indoor or observatory use only. There is a risk of
electric shock if the adaptor is used in damp environments or outside. If in
doubt do not use the adaptor and consult a trained electrician.
3.6
USB Port
The Atik series 3 cameras use a USB 2.0 high-speed interface, allowing full-
frame image downloads in only a few seconds. A higher speed "preview"
mode is also present, providing roughly twice the speed.
3.7
Autoguiding Port
The autoguiding port enables you to do autoguiding with any ST4 compatible
guiding software when using the optional cable. The port schematics are
shown in section 4.
Page 6
mains power adaptor,