Thanks George,
it seems to work well, but i had the bad idea of maximising the collimation
(which was nearly perfect) and i think it's worse now. the chip area which
is larger also brings problems with my lumicon focal reducer near the
borders (elongated stars).

"George Normandin" a écrit dans le message de
...
"Patrice Boyer" wrote
...

Great set of h-alpha images Patrice!

It looks like you have a good combination of camera and scope.

George N