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Your mount will need to have EQ capability, not just Alt Az. Things that favour newts for imaging:
True colour rendition from mirror systems,
Cost effective aperture,
Easily coma corrected.
Fast photographically, nominally f4 or f5.
As far as tracking concerned, you will need to learn to guide the scope if you wish to take longer sub exposures, which means a guide scope attached, PHD2 etc.
You can image with other mirror system scopes like RCs, but most people start with Newts because of simplicity and budget.
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