All of our cameras except the Atik 11000 feature standard T threads (M42x0.75) and 1.23 or 2 inch draw tubes. Your telescope vendor will be able to suggest a suitable adaptor should the telescope not come equipped with these as supplied. We recommend that the T thread coupling method is used in preference to the draw tube as it’s less likely to lead to incorrect tilt or collimation. The M54x1 thread used in the OAG, EFW2(50mm) and Atik 11000 is a standard used by many astroimagers and your telescope vendor should be able to suggest suitable adaptors. Alternatively, Precision Parts has experience of joining many different imaging trains together.