So here is a full frame of M13 as my first test image.
48min, bias, flats and darks. No guiding 45sec subs.
50% reduced:-
Cropped 70% :-
Here are the bits:-
This is the correct configuration, which gives the correct FR distance.
and this is the old setup:-
The rings fitted together:-
The separate pieces:-
These items were obtained from Green-witch.
CA35 Camera Coupling No 30 - Ref. TAK-TKA35201
Wide T-Mount No 33 - Ref. TMW0004 (not available in Europe, but made up by Green-Witch)
I know that this all looks a bit mundane, but it taken me ages to sort this out without resorting to buying something from the states.
