badgerchap Posted July 13, 2013 Share Posted July 13, 2013 I took my first M31 last year: which was with my 10D through a WO66 on an eq5, 5 x 2 min exposures at ISO800. This year, as a return from summer downtime, I've returned to our next door neighbour with an 1100D, a 150 f4 newt on an eq6 with 30 x 90 sec exposures at ISO 800. Plus I've had a bit more practice with DSS (used for both images) and here's the result:I'm really chuffed with the result, it's a massive change. Just shows what better equipment will do for you. The main issue I have though is the bottom left corner, but I think this is something to do with imaging in July! The sun was definitely beginning to brighten the sky as my run came to an end, so maybe if I go back in a few months I can get rid of that nasty smear.I'm also not quite sure of the colours. Looking online I see there's quite a bit of variation here, so I'm undecided as yet as to whether or not I've got it right. Any advice or input would be greatly appreciated!Thanks for looking Guy Link to comment Share on other sites More sharing options...
nmoushon Posted July 13, 2013 Share Posted July 13, 2013 Great job and nice improvement! Now just need to add more subs so ou can get the fainter inner dust rings. Link to comment Share on other sites More sharing options...
Ant Posted July 13, 2013 Share Posted July 13, 2013 That's a nice improvement, I do like the colouring of the second. Much more subtle and warm looking The bottom left looks like what I used to get with the webcam, amp glow, but of course might not be. Did you subtract darks?This time of year with these temperatures noise is going to be a huge issue with a dSLR at ISO800, if you took darks I'd be interested to see one of them. If you didn't take darks, you can take them today - just pick a time of day where the temp is roughly the same as the imaging run and get 10 darks.Apologies if I'm teaching your gran to suck eggs.Irrespective of the bottom left corner it's a lovely image.CheersAnt Link to comment Share on other sites More sharing options...
badgerchap Posted July 13, 2013 Author Share Posted July 13, 2013 Did darks and flats, but its my first ever use of the latter, so I may have messed something up there?Typed inexpertly from my phone Link to comment Share on other sites More sharing options...
James Posted July 13, 2013 Share Posted July 13, 2013 Wow - that's chalk and cheese... the second one is a huge improvement Considering it doesn't get properly dark at this time of year and the nighttime temperatures I think you've done pretty well - I tried M31 the other night for fun and it was a disaster.There will always be colour variations and no doubt the real experts can offer advice but a yellowing warm looking core and colder slightly bluish arms look good to me.James Link to comment Share on other sites More sharing options...
iksose7 Posted July 13, 2013 Share Posted July 13, 2013 Thats a great improvement! congrats. As for the colours, like James said above me - i like my M31s with the kind of core you have produced here, but with nice blue arms. And to finish it off, some lovely blobs of red Ha! Mmmmmmmmmmm, Ha Link to comment Share on other sites More sharing options...
steppenwolf Posted July 13, 2013 Share Posted July 13, 2013 That's quite some improvement - the new image is so much smoother and has more natural colours. This recent clear spell has been wonderful, look how many deep sky images have been posted this week in comparison with three or so weeks ago! The rising Sun is certainly an impediment and the nights are short but you've taken good advantage of them. Link to comment Share on other sites More sharing options...
badgerchap Posted July 13, 2013 Author Share Posted July 13, 2013 Thanks for the feedback guys, greatly appreciated.I did want bluer arms but I'm still a bit wet behind the ears so I wasn't able to get them without losing the redness of the core. More practice required!Typed inexpertly from my phone Link to comment Share on other sites More sharing options...
Tom OD Posted July 13, 2013 Share Posted July 13, 2013 That is a big improvement, well done. Link to comment Share on other sites More sharing options...
WaveSoarer Posted July 13, 2013 Share Posted July 13, 2013 That's very nice indeed. Link to comment Share on other sites More sharing options...
badgerchap Posted July 14, 2013 Author Share Posted July 14, 2013 Thanks Tom and WaveSoarer Typed inexpertly from my phone Link to comment Share on other sites More sharing options...
Jessun Posted July 14, 2013 Share Posted July 14, 2013 Great image and serious improvement!/Jesper Link to comment Share on other sites More sharing options...
badgerchap Posted July 14, 2013 Author Share Posted July 14, 2013 Cheers Jester Typed inexpertly from my phone Link to comment Share on other sites More sharing options...
badgerchap Posted July 14, 2013 Author Share Posted July 14, 2013 Jesper* D'oh! Stupid autocorrect! Autocorrupt more like....Typed inexpertly from my phone Link to comment Share on other sites More sharing options...
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