What astronomical telescope is good for deep space photography?

Pentax k-3 SLR, want to buy astronomical telescope for deep space photography, Sirius 20 14 version painter patrol number 3TQ3D-HS102 DS; Star Village Omni120 XLT; ; Starry Sky -WatcherBKP 150750 photographic version, Pentax k-3 SLR, and I want to buy Sirius 20 14 version for deep space photographers to inspect TQ3D-HS102 DS; Star Village Omni120 XLT; ; Sky-watcher KP 150750 Photography Edition Entry-level APO has Sharp Star 65Q, or you can look at 80ED in Yuzhong. Excellent color difference control, taking into account portability. As far as possible, there is no chromatic aberration, but the field of vision is small and large-caliber cattle are not convenient to carry. Marca Zeca's focal ratio is too large, which is only suitable for shooting planets, and the efficiency of shooting deep space with SLR is too low. Forget it, it's not suitable for deep space at all.

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