I use the QSI 683 Mono (8mpixel / Monochrome CCD) for widefield photography and the Sbig ST10XME for small deep sky objects
Vixen VC200L was a great telescope. I used it at 1800mm /f9 and at 1280/f6.4 (having the vixen reducer). Guiding is performed by another camera (Starshoot Autoguider) attached to an off-axis guider (TS-OAG9). Off axis guider usage is critical in order to avoid any flexure and have good and not blurred images at 1800mm.
For wide-field imaging I currently use the Takahashi FSQ-85ED.
A new baby came in my possession and its name is Officina Stellare Veloce RH 200. It’s extremely fast f/3 , 8”, wide field Riccardi-Honders Astrograph.
Skywatcher HEQ5 is the german equatorial mount i use for the whole setup. Mount tracking needs guiding and with a photographic payload of 14kg it was nearly a miracle that i could get pictures at 1800mm. Some mods/tuning in the HEQ5 have done the job ;) (lubrication / gears etc).
The mount was replaced by an Astrophysics Mach1 GTO with superb tracking accuracy
ATIK 314L M
William Optics FLT98 Alu
Skywatcher ED120 Pro