alan4908 Posted July 8, 2017 Share Posted July 8, 2017 I decided to attempt to enhance my M51 image taken with my SW 80 ED/NEQ6 last year with some Luminescence data that I had acquired through some unguided test shots with my new SW Esprit 150/10micron GM1000HPS combination. Since I've never tried to combine data from two difference scopes, I decided to simply overlay the post processed result of my previous attempt with the new luminescence data and aligned the images via Registar. After a bit of processing in PS and Pixinsight I got the result below. The image represents just over 9 hours integration time. Alan LIGHTS ED 80: L:11,R:10,G:9,B:8 x 600s. Ha: 2 x 1200s. LIGHTS Esprit 150: L:5 x 600s, 2x1800s. DARKS: 30; BIAS:100; FLATS:40 30 Link to comment Share on other sites More sharing options...
triton1 Posted July 8, 2017 Share Posted July 8, 2017 Wow stunning great detail,colour and contrast? Link to comment Share on other sites More sharing options...
alan4908 Posted July 8, 2017 Author Share Posted July 8, 2017 1 hour ago, triton1 said: Wow stunning great detail,colour and contrast? Thanks Jonn. Alan Link to comment Share on other sites More sharing options...
MARS1960 Posted July 8, 2017 Share Posted July 8, 2017 Wow indeed, that is a cracking image Alan. Link to comment Share on other sites More sharing options...
alan4908 Posted July 8, 2017 Author Share Posted July 8, 2017 1 hour ago, MARS1960 said: Wow indeed, that is a cracking image Alan. Glad you liked it Mark ! I think my imaging scale of 0.7 arc seconds/pixel that I obtain from my new imaging set up really helps on the detail. At first, I was a bit dubious that this sampling rate was a bit too low for DSO's but so far it appears to be delivering the goods. Alan Link to comment Share on other sites More sharing options...
ollypenrice Posted July 8, 2017 Share Posted July 8, 2017 That works! I don't know how you applied the high res luminance to the RGB but when I do this I do it in small iterations, adding a little L, giving that L a slight blur, flattening and re-applying a little L etc. Of course on the final iteration of adding the high res L I don't blur it. This preserves the full detail. Olly 1 Link to comment Share on other sites More sharing options...
alan4908 Posted July 8, 2017 Author Share Posted July 8, 2017 2 hours ago, ollypenrice said: That works! I don't know how you applied the high res luminance to the RGB but when I do this I do it in small iterations, adding a little L, giving that L a slight blur, flattening and re-applying a little L etc. Of course on the final iteration of adding the high res L I don't blur it. This preserves the full detail. Olly Thanks for the comment Olly and also the tip about how to do high res Lum blending. In this particular instance, what I did was to take my previous, lower resolution, Ha+ LRGB post processed image and treated this an "RGB" layer. Within PS. I then took the new higher resolution Lum data and blended it via the PS Luminosity blending mode with the "RGB" data. I'm not sure if this is the most effective approach but in this particular instance it seemed to work well. Alan 3 Link to comment Share on other sites More sharing options...
tooth_dr Posted July 8, 2017 Share Posted July 8, 2017 Fabulous detail, I never tire of this beautiful galaxy and this is a stunning example. Link to comment Share on other sites More sharing options...
alan4908 Posted July 8, 2017 Author Share Posted July 8, 2017 1 minute ago, tooth_dr said: Fabulous detail, I never tire of this beautiful galaxy and this is a stunning example. Thanks I also find it one of the most beautiful objectives in the night sky, unfortunately, I now need to wait until next year before my next imaging attempt since it is now below my local horizon. Alan 1 Link to comment Share on other sites More sharing options...
ollypenrice Posted July 9, 2017 Share Posted July 9, 2017 10 hours ago, alan4908 said: Thanks for the comment Olly and also the tip about how to do high res Lum blending. In this particular instance, what I did was to take my previous, lower resolution, Ha+ LRGB post processed image and treated this an "RGB" layer. Within PS. I then took the new higher resolution Lum data and blended it via the PS Luminosity blending mode with the "RGB" data. I'm not sure if this is the most effective approach but in this particular instance it seemed to work well. Alan The only thing about this workflow is that the L will subdue the Ha. Although the resolution will be lower in your Ha there is not much fine detail to resolve so it might be worth resizing and re-applying it to the high res image? Olly 2 Link to comment Share on other sites More sharing options...
Chris Posted July 9, 2017 Share Posted July 9, 2017 That's impressive! Link to comment Share on other sites More sharing options...
alan4908 Posted July 9, 2017 Author Share Posted July 9, 2017 21 minutes ago, ollypenrice said: The only thing about this workflow is that the L will subdue the Ha. Although the resolution will be lower in your Ha there is not much fine detail to resolve so it might be worth resizing and re-applying it to the high res image? Olly Thanks for this Olly - I think I'll experiment with a few different approaches. Alan 15 minutes ago, Lockie said: That's impressive! Thanks ! Link to comment Share on other sites More sharing options...
PatrickGilliland Posted July 15, 2017 Share Posted July 15, 2017 Nie work, good structures and details in there. Link to comment Share on other sites More sharing options...
alan4908 Posted July 15, 2017 Author Share Posted July 15, 2017 4 hours ago, PatrickGilliland said: Nie work, good structures and details in there. Thanks Paddy. Alan Link to comment Share on other sites More sharing options...
Barry-Wilson Posted July 15, 2017 Share Posted July 15, 2017 Well done Alan - good job on the detail and processing. Link to comment Share on other sites More sharing options...
niallk Posted July 15, 2017 Share Posted July 15, 2017 Spectacular!! Link to comment Share on other sites More sharing options...
swag72 Posted July 15, 2017 Share Posted July 15, 2017 That's looking good Nice work and well done on the combination Link to comment Share on other sites More sharing options...
alan4908 Posted July 16, 2017 Author Share Posted July 16, 2017 10 hours ago, Barry-Wilson said: Well done Alan - good job on the detail and processing. Thanks Barry - I'm slowly trying out the various Pixinsight techniques of sharpening and contrast enhancement (although I still import the result into PS as a layer for mask generation ) these help quite a bit on enhancing the detail. 9 hours ago, niallk said: Spectacular!! Thanks ! 9 hours ago, swag72 said: That's looking good Nice work and well done on the combination Thanks Sara, I'm very happy with both the Esprit 150 and my new mount. Alan 1 Link to comment Share on other sites More sharing options...
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