I picked up a really nice William GT81 at an estate auction the other day. It's The version with the limited edition 880, digital focuser.
So I ordered a Flat6 Version 1 with EOS adapter, I received a P-FLAT6AII instead of the FLAT I. From the looks of things this flattener / reducer is supposed to screw on to the back of the focus tube. Unfortunately I can not remove the 2" compression ring from the tube. It feels like it's permanently attached to the focus tube.
Will these two pieces of equipment work together? If so how do you remove this compression ring, or is it even possible?
I don't want to force something and end up breaking this telescope.