Hi Paul, round stars would improve your image enormously, so I suggest
either improve your PA, or cut your subs back to about 40secs. What
aperture, ISO, etc did you use? The sweet spot of an 1100D is 1600.
raymo
Quite dramatic and not bad for a zoom objective - mine old Canon as wonderfull as it is for terrestrial has a strong chromatic abberation when doing stars - yours holds much better. And I totaly get you - this hobby keeps me sane when the live gets too hectic
Hi Baobab,
I'm surprised that your Canon has CA, no Canon lens I've ever owned including my present ones display[ed] any. Even my cheap Yongnuo
50, 85, and 100mm are CA free apart from a tiny bit on the Moon.
raymo