Here is my first real life test withe the freeware "Sequator". It is very fast (5-10 x DSS) and did (at least in this try) do the stacking job much better than the DeepSkyStacker. For more info you might like to look here:
The DSS overall result was very bad compared with the Sequator result. But because the Sequator blew out the stars and the core of M81 I processed the Sequator image in Photoshop and merged in the DSS result with a star mask in the end to gain back the bright objects.
I shot M81 & M82 last nicht but there were thin high clouds that produced a lot of milky sky together with the light pollution here. Also the focus got lost during the session and I noticed it too late. So the red "starburst" near M82 is only very faint - I need better data!
Image was shot with a Pentax K3ii and the Pentax 1.4x Rear Converter HD on a TS 80/480 Triplet APO (31 x 300 s @ ISO 400].
full resolution: https://www.flickr.c...eposted-public/
Edited by Pete_xl, 17 March 2017 - 02:20 PM.