What kind of SLR do you want to use for deep space photography?

Canon and Sony SLR cameras are used for deep space photography. The advantage of SLR camera is that it has a large frame and is suitable for daily life. First of all, the SLR has refrigeration, which can't control the cmos temperature (refrigeration can obviously reduce dark current noise, and constant temperature is helpful to shoot dark fields with accurate temperature), with low sampling number (12- 14 bits), low shooting efficiency before changing machines, and no black and white selection.

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