· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing Previous   Index   Next   Threaded   Pages: 1 | 2 | (show all) SGT500 Carpal Tunnel Reged: 10/03/06 Posts: 2924 Loc: Ny Re: Its M42 season alright [Re: Nils_Lars]       #3427476 - 11/03/09 01:39 PM Attachment (10 downloads) Edit   Reply   Quote Quick Reply   Sure Erik, Im not the greatest at telling my processing workflow but ill do my best First i opened up the 8 minute stack. I duplicated the first layer and started stretching the second. i didnt worry about blowing out the core too much because i had 2 8 minute stack layers. so after levels, curves and one shadows and highlights pass, i layered the original and the stretched layers together. Then i did the same for the 1 minute stack. a series of levels and curves then i did layer masks on the 1 minute stack to get the full dynamic range of that stacked image. I then pasted this layer on top of the 8 minute later, to be processed after i finished with the 15 second stack. I did the same process for the 15 second stack as the 1 minute stack. After i got the 3 images stacked on top of eachother i tried to layer them all together. It took about 10 layer masks to get it right. if the image looked too dark after i applied a layer mask i would curve the image to brighten it up. Then after i got done with the layer masks i gave it some extra contrast and applied a high pass filter to try and bring some extra dust out. I finished it off with a bit of noise reduction. and thats really all i did. I hope i didn't make that extremely confusing to read. haha i ramble a little when i talk about processing. Here is my version blended with your version. it brought some more contrast to the dust. -------------------- -Sal AstroTech Ritchey Chretien 8" Williams Optics Zenithstar 80 Orion Atlas Eq-G Hap Griffin Modified Canon Eos Xs (1000D) My Astrophotography Gallery My Sketch Gallery Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3459 Loc: Santa Cruz Mountains , CA Re: Its M42 season alright [Re: SGT500]       #3427779 - 11/03/09 04:12 PM Edit   Reply   Quote Quick Reply   Thanks for the workflow , I always find it helpful. That version blended with your nebula with my background looks great. I did have to do dual processing for each stack too and lots of layers masks too. How did you blend the layer masks , I had to use a combination of Jerry Lodriguss techniques and a mask of the nebula itself but lightened and darkened to the extreme. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       Star surfer8 super member Reged: 05/15/06 Posts: 494 Re: Its M42 season alright [Re: Nils_Lars]       #3427996 - 11/03/09 06:27 PM Attachment (12 downloads) Edit   Reply   Quote Quick Reply   Erik, Had an hour to kill at work so I gave it a quick run through. I was trying for the natural look but it might of turned out a little plain. Hope it helps in some way. Also, you have some good data there and thanks for posting it. -------------------- Tom Edited by Star surfer8 (11/03/09 06:30 PM) Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3459 Loc: Santa Cruz Mountains , CA Re: Its M42 season alright [Re: Star surfer8]       #3428366 - 11/03/09 10:35 PM Edit   Reply   Quote Quick Reply   Looks pretty good Tom , I had a hard time keeping the red out of the background when I processed too but it does seem to show the most detail in that area between M42 and the Running Man. Thanks for the comment and for messing with my data. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       ido sage Reged: 06/29/06 Posts: 368 Re: Its M42 season alright [Re: Nils_Lars]       #3428650 - 11/04/09 03:56 AM Edit   Reply   Quote Quick Reply   Well done! -------------------- http://bareket-astro.com/en.htm Bareket observatory, Israel. Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3459 Loc: Santa Cruz Mountains , CA Re: Its M42 season alright [Re: ido]       #3429482 - 11/04/09 04:03 PM Edit   Reply   Quote Quick Reply   Thanks ido for the encouragment -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3459 Loc: Santa Cruz Mountains , CA Re: Its M42 season alright [Re: Nils_Lars]       #3439456 - 11/10/09 01:40 AM Edit   Reply   Quote Quick Reply   So I have taken everyones advice and made a few adjustments , I boosted the color in LAB and increased the contrast a bit and reset the white point and the black point again. I still couldnt bring myself to go red in the clouds even though it shows more detail I like the smokey look. Did I go to far with it? -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       SGT500 Carpal Tunnel Reged: 10/03/06 Posts: 2924 Loc: Ny Re: Its M42 season alright [Re: Nils_Lars]       #3440206 - 11/10/09 02:09 PM Edit   Reply   Quote Quick Reply   Nope i dont think you went too far, looks nice. Great job on this one -------------------- -Sal AstroTech Ritchey Chretien 8" Williams Optics Zenithstar 80 Orion Atlas Eq-G Hap Griffin Modified Canon Eos Xs (1000D) My Astrophotography Gallery My Sketch Gallery Post Extras:       Pages: 1 | 2 | (show all) Previous   Index   Next   Threaded   Extra information 7 registered and 10 anonymous users are browsing this forum. 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