Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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I know, its an over imaged DSO by us new imagers .. but it looks nice and helps me learn post processing (still need a lot of work).
This is a stack of 31 subs at 2min each, and 10 darks. I used my AT66ED with my Canon 500D/T1i. Honestly, this set of images was an after thought when I could not get my CPC800 to track correctly due to seeing (FWHM of 9 .. With my AT66ED I could at least get 4.5).
Larger JPG:
http://media.express-is.net/astronomy/pictures/2009-10-25/M42/M42.JPG
Stacked TIFF if anyone wants to play:
http://media.express-is.net/astronomy/pictures/2009-10-25/M42/M42-16Bit-Original.TIF
http://media.express-is.net/astronomy/pictures/2009-10-25/M42/M42-32Bit-Original.TIF
Edited by Roy Salisbury (10/28/09 01:49 PM)
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Doubleglaze
sage
Reged: 11/01/07
Posts: 201
Loc: Pacific NW
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Seems a fine first shot to me. When I did my first M42 I nearly fell off my imaging chair - "holy cow it's amazing that I just took that picture". Didn't matter what the imaging quality was, just having done it at all was satisfaction enough.
Those photons went a long way to make you smile. Now I'm waiting for a clear night to try it again myself.
Mark
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Vixen VMC260L / Sphinx SXD
Pentax 75 SDHF
Canon 40D / 50mm f1.4 / 100mm f2.8 macro / 28-135 f/3.5-5.6 / 200mm f2.8L
http://www.astrophotogallery.org/showgallery.php/cat/500/ppuser/166
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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Oh, I did the same thing the first time I took an image of it. I could not believe I actually took the image. Its one of those images that you go back to when things just go wrong all night .. that way you can end on a good image.
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
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davidc
sage
Reged: 11/24/05
Posts: 264
Loc: Mesa, Arizona
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Roy,
The image you have done of M42 looks great to me. I like the details, and the colors came thru great. This one is small enough to see, but not overwhelming like some, where the image is almost edge to edge. I can see the trapizium, and the outline of the running man nebula. Great job!
David
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13.1 Inch-F/4.8 Royce Conical Homebuilt Dob
8 Inch-F/5 Orion Dob
4 Inch Celestron Reflector Camping Scope
25mm Meade W/A Ep
13mm Orion Stratus Ep
8mm Orion Stratus Ep
2X Meade Barlow
Meade Cheshire/Sight Tube
East Valley Astronomy Club
Searching For Rainbows In The Dark
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Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3459
Loc: Santa Cruz Mountains , CA
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Cool shot Roy
I had the same experience of being blown away at what I got out of some quick 30 sec subs , such a great target.
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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/
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Miikka Sikkila
member
Reged: 04/22/09
Posts: 23
Loc: Finland
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Hey Roy! Nice shot with a 66 tube, looks mmuch like mine as I have exactly the same gear even though my 66 scope is branded as Baader Scopos. Anyways if you guide with the small scope and have a wedge on your CPC, you'll get screen full of M42 with that combination 
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Every morning when the sun goes up, she brings me coffee in my favourite cup!
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dreamer555
member
Reged: 07/09/08
Posts: 41
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can i see 1 light frame ?
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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All the RAW images for that picture are here:
http://media.express-is.net/astronomy/pictures/2009-10-25/M42/
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
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dreamer555
member
Reged: 07/09/08
Posts: 41
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Thanx Roy for your response , i realy needed your RAW images, don't worry iam not going to use it for personal purposes. just for practice
ALL RIGHTS RESERVED FOR ROY
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jmX
super member
Reged: 04/23/09
Posts: 170
Loc: Orange County, CA
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Hi Roy, I spent about 15 minutes with your 16bit TIFF file in photoshop CS4, and you have a LOT more data in there than your version shows. Here is what I got out of the file:
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Jon
C6N + CG5
Skywatcher Equinox 80 + CGEM
http://jmx.ls1howto.com
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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Quote:
Thanx Roy for your response , i realy needed your RAW images, don't worry iam not going to use it for personal purposes. just for practice
ALL RIGHTS RESERVED FOR ROY
Practice away. All I ask is that you share the final image so we can all enjoy the picture.
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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Quote:
Hi Roy, I spent about 15 minutes with your 16bit TIFF file in photoshop CS4, and you have a LOT more data in there than your version shows. Here is what I got out of the file:
See .. that is how bad I am with post processing...  I look at them and think .. *BLEEP*.. I did something wrong in taking the pictures.
Here is something that might be better. 2 days before I had taken that same image and have another 20 or so subs that I never included in that stack. I am going to re-stack them today and create new masters. From the quick run I did yesterday, I could tell that there was A LOT more detail .. But I could not get the color right.
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
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dgpilot
super member
Reged: 09/25/09
Posts: 105
Loc: San Ramon, California
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What software did you use to stack them? I downloaded your tiff stack and it seems way too dark and the trapezium is overexposed off the bat. The histogram also shows that there is clipped data, so somewhere in the stacking process you lost a lot of data.
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LXD75 8" SN f/4
Canon 50D, 350D (unmodded)
Orion ST80 Guidescope
Meade DSI II Pro
San Ramon, California 
My Astro Gallery
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jmX
super member
Reged: 04/23/09
Posts: 170
Loc: Orange County, CA
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Quote:
What software did you use to stack them? I downloaded your tiff stack and it seems way too dark and the trapezium is overexposed off the bat. The histogram also shows that there is clipped data, so somewhere in the stacking process you lost a lot of data.
The trapezium is overexposed, but I have never had a stacked image come out bright. Just about every single image on my website started out as a black 16bit tiff. Didn't seem like there's anything wrong with that, and the data didnt strike me as being incorrect.
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Jon
C6N + CG5
Skywatcher Equinox 80 + CGEM
http://jmx.ls1howto.com
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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These were stacked with DeepSkyStacker. I'm not even going to pretend that I did not over or under expose the images. I'm still a long way from getting each exposure correct. I just take an image, look at it and say .."sure, that looks good .. take 30 more just like that".
I have taken 15s, 30s, 60s subs and want to try combining them into one picture .. but that is a lot more advanced for me right now.
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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Yea.. I have even asked the folks over on the DeepSkyStacker group about it. They say that is the way it should look.. Who am I to argue with them about how it works.
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
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Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3459
Loc: Santa Cruz Mountains , CA
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Well the stacks do come out dark from DSS but the data is still there , it just takes a bit to get the detail out.
You could use something like DDP from Nebulosity to give you a start in processing , it makes the steps after quicker.
Dont worry Roy we have all been there , it is frustrating in the begining but it gets easier as you go along.
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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/
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jmX
super member
Reged: 04/23/09
Posts: 170
Loc: Orange County, CA
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For whatever its worth, once I have stacked data, I do no processing in Nebulosity or DSS. No DDP, no offset adjustment, no nothing. I just pull my nearly black .tif file into photoshop and start working with curves/levels and all the rest of the tricks.
Afer a nice mount, processing technique is everything in this hobby.
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Jon
C6N + CG5
Skywatcher Equinox 80 + CGEM
http://jmx.ls1howto.com
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Roy Salisbury
sage
Reged: 05/26/09
Posts: 228
Loc: Las Vegas, NV
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Quote:
Hi Roy, I spent about 15 minutes with your 16bit TIFF file in photoshop CS4, and you have a LOT more data in there than your version shows. Here is what I got out of the file:
OK.. After seeing this again I decided to bite the bullet and get photoshop for my Mac (Pixelmator just was not cutting it). With a few simple adjustments I was able to get a better output than my prior version that I spent 20 min on.
Lesson learned.. don't take short cuts with the post processing tools.
UPDATE: OK.. I'm finally figuring something out. I have been doing most of my post processing on my laptop (MacBook Pro 13"). And when I installed photoshop on my iMac I was amazed at how easy it was to correct colors and such. So I installed photoshop on my MacBook .. I could not get the same results. Seems that the MacBook has a 6-bit display and not the 8-bit that my iMac does. So instead of the "millions" of colors I only get "thousands" .. The image on my MacBook was always getting dithered so I always backed things off. So I will try Pixelmator on my iMac and see if I can get things to work out.
Roy
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Scope: Main - Celestron CPC 800 / Guide - AT66ED
Cameras: Canon EOS 500D DSLR / Orion Starshoot Autoguider / NexImage Webcam
EP's: Baader Hyperion 5mm, 8-24mm Zoom / Celestron 6, 9, 15, 32, 40, 2x Barlow, F6.3 Focal Reducer
Edited by Roy Salisbury (10/30/09 12:34 AM)
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jmX
super member
Reged: 04/23/09
Posts: 170
Loc: Orange County, CA
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I think you'll be happy you bit the bullet. It's pricey, but worth it.
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Jon
C6N + CG5
Skywatcher Equinox 80 + CGEM
http://jmx.ls1howto.com
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