Finally today I’ve been able to put my hands on a special adaptor that a friend of mine made for me so I can use the Coronado PST “blackbox” on a Vixen A80M acro.
The adaptor is very simple, light but solid. It’s made of aluminium.
You can see a few pictures of the adaptor and how it attaches to the Vixen here:
Now I’m waiting for the Baader D-ERF with custom cell for the Vixen to arrive from Germany and I can start taking some picture.
I already made some testing and the new adaptor works like a charm. I have plenty of backfocus now and without having to cut the tube. I simply dismantle the focuser block and “dress” the tube with the custom adaptor.
This is phase 1. Phase 2 will be getting rid of the blackbox and only use the etalon and the blocking filter from the original PST.
I’ll keep you updated