As my FOV is limited in Sydney only have reasonable views to the east and north ( 2 story neighbours houses, trees etc. you name it) and most objects are below 30 degrees most of the night so I imaged M42 again with a large number of shorter exposures
70 x 30 sec subs
15 x darks
15 x flats
ISO 800
Canon 600D
6” f6 newt
PHD2 guiding
Stacked in DSS
Processed in Startools
Very windy night gusts of up to 25 km/hr but guiding was running good considering at 1.5 to 1.8 total arc sec error with RA Osc around 3.2
Thanks all,
Yeh I think good polar alignment is the key to good guiding in the wind
The old Canon 600D does its job as well for an old clunker( it was lying around for years before I got into astronomy, never used it at all )