Don't discount the humble entyy-level DSLR
Whilst not great for remote planetary (you really need to stack video in this case), they're really excellent for high-resolution lunar. My pref? My Nikon, as it seems to produce more accurate colour than my Canons, but any will do. Low ISO settings mean almost no noise.
Here are a couple of
single-frame images I took a while back with my Nikon D40: