Testing out the celestron C925 with 6.3 reducer and 77mm back focus which gives me the theoretical focal length of 1480mm
Celestron C925
OAG
174mm guide camera
asi 533MC cooled camera
wave 150i mount on ZWO carbon tripod with 5kg counterweight
ASIAIR Plus
SVBONY SV220 dual band H-Alpha / O-III 7nm filter
65 x 120sec exposures
bortle 7
