Hi,
I would like to swap my OAG with an OAG-L to (try to) improve my guiding. I'm using an ASI 120mini as guiding camera.
Is it a good idea? or even feasible?
The back focus is different and I propose to modify my optical train as described below :
##new train##
ASI1600 (6.5mm)
Ring (7mm)
EFW (20mm)
OAG-L (22.5mm)
It represent a total backfocus of 56mm.
Exactly the same backfocus that I got with the simple OAG before:
##old train##
ASI1600 (6.5mm)
EFW (20mm)
Ring (2mm)
Spacer (11mm)
OAG (16,5mm)
The same total of 56mm...
Thanks for any feedback.
Bruno