alacant Posted May 21, 2018 Share Posted May 21, 2018 Hi everyone Comparison; 2 and 4 hours. I thought that with the extra frames I'd be able to push more, Quite disappointing to see little improvement over the 2 hour snap with the same stretching. Here is the 2 hour with a sensible stretch and a stretch and hope version of the 4 hour data... Thanks for looking and any comments -especially on the stretching- most welcome. 700d on 250p 14x8min and 28x8min Link to comment Share on other sites More sharing options...
SteveA Posted May 21, 2018 Share Posted May 21, 2018 I think I agree with your comments and that the extra frames haven't really added anything to this image...bizarrely the second image actually "looks" noisier. I prefer the crisp cleaner appearance of the first image...lovely colours by the way.. Steve Link to comment Share on other sites More sharing options...
teoria_del_big_bang Posted May 21, 2018 Share Posted May 21, 2018 Another nice image. I would agree that the upper image looks to have a much clearer background. Steve Link to comment Share on other sites More sharing options...
Craney Posted May 21, 2018 Share Posted May 21, 2018 20 minutes ago, SteveA said: the second image actually "looks" noisier. I have found the same with my own results . It seems that the whole area has a sub-surface gaseous 'fuzz' that just lifts out of the darkness when you stretch the image... Link to comment Share on other sites More sharing options...
newbie alert Posted May 21, 2018 Share Posted May 21, 2018 Stars on the second image have a blur to them..theyre not sharp as they are on first one..was it on the same night? Link to comment Share on other sites More sharing options...
MilwaukeeLion Posted May 21, 2018 Share Posted May 21, 2018 Really nice images, interesting test, would’ve thought same, more data more stretch. Clearly see additional structure in second image. Curious how second image looks using same stretch as first image. Link to comment Share on other sites More sharing options...
Gerry Casa Christiana Posted May 22, 2018 Share Posted May 22, 2018 21 hours ago, alacant said: Hi everyone Comparison; 2 and 4 hours. I thought that with the extra frames I'd be able to push more, Quite disappointing to see little improvement over the 2 hour snap with the same stretching. Here is the 2 hour with a sensible stretch and a stretch and hope version of the 4 hour data... Thanks for looking and any comments -especially on the stretching- most welcome. 700d on 250p 14x8min and 28x8min Very strange. Stacked the same way? Bad couple of frames in there? Moon getting brighter? (Still don't know how you get these with the moon at 33%) something must be wrong. Link to comment Share on other sites More sharing options...
alacant Posted May 22, 2018 Author Share Posted May 22, 2018 22 hours ago, newbie alert said: the same night? Hi. No. By the time it's high enough to begin imaging, there are only around 2 hours before sunrise. So 2 nights. 3 hours ago, Gerry Casa Christiana said: the moon at 33% This is at new moon and the night after. 3 hours ago, Gerry Casa Christiana said: Bad couple of frames in there They look OK. I removed the camera between sessions to check collimation. Maybe that's not good for the flat frames. I don't think you can ever get it back exactly? The collimation was fine. I really wish I'd left it be. Link to comment Share on other sites More sharing options...
Gerry Casa Christiana Posted May 22, 2018 Share Posted May 22, 2018 A great first picture at any rate! Link to comment Share on other sites More sharing options...
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