QHY OAG-M, Medium Off-Axis guider
The "Medium" version of the QHY OAG has a diameter of 62mm and will accept both M42/0.75 and M54/0.75 adapters. The OAG-M comes with both sets of adapters (two M42 and two M54), giving you more mounting flexibility. You can use either size adapter on the telescope or camera side. The QHY OAG-M supports camera models with APS-C, APS-H, and 36x34 sensors, including the QHY16200A, or as mentioned earlier, you can attach the CFW2-M directly to the medium off-axis guider.
The QHY OAG has an 8mm x 8mm multi-coated prism. Its position can be adjusted as desired and then locked into position with a thumbscrew. This OAG also comes with a locking multi-thread 1.25" focuser with an approximate range of 6mm. If you use the QHY5L-II as your guide camera, its position is adjustable when inserted into the QHY OAG-M. These two adjustments will give you a wide range of back focus.