Well, before of finding a good solution to assemble Canon, OAG, filter wheel QHY and coma corrector I tried with DSI-1 and ASI120MC. Now I will try with Canon, since the solution is ready.
1) GSO 305 mm - DSI-1 Meade - OAG - ASI120MC - 40 min - 20 x 2 min - skyglow filter
2 and 3 ) GSO 305 mm - ASI120MC - OAG - DSI-1 Meade - 35 x 20 seg - 11 min 40 seg. - skyglow filter
4) GSO 305 mm - ASI120MC - OAG - DSI-1 Meade - 20 x 50 seg - 16 min 40 seg. - skyglow filter
