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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 27 Dec 2008 (Saturday) 20:53
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Widefield Rosette

 
strgazr27
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167 posts
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Dec 27, 2008 20:53 |  #1

I was able to get 3 hours of the Rosette with the 70-200L a few nights ago. I have grown so fond of this lens I have my AT66 up for sale. I am also SERIOUSLY looking at a 300 f/2.8L. I'm pretty happy with this, especially for the limited time I got on it. Comments welcome :)

Specs:

37 X 300 sec
Canon 70-200 F/ L at 135mm
Self Modded 40D
Atlas EQ-6 running EQMOD and CDC
Guided with the ED80 and SSAG
Guiding and capture with MaximDl V 5
Calibrated with Images Plus V3
Stacked in Registar
PP with PSCS2

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

Gripped 40D - 17-40L - 70-200 f/4L - Gitzo GT0531 Mountaineer - Astrotrac TT320X-AG
www.strgazr27.zenfolio​.com (external link)

http://www.stonyhillob​servatory.com (external link)

  
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dpastern
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Dec 27, 2008 21:01 |  #2
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Damn fine! Why not consider a 300mm f4? One day, when I get my scope and mount, I'll aim to be taking excellent astro images like this!!!

Dave


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Celestron
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Dec 27, 2008 22:44 |  #3

Excellent image ! Hats off to you ! 135mm is a very popular range for shooting DSOs' . You did good !




  
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chris.bailey
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Location: Norwich, Norfolk, UK
     
Dec 28, 2008 03:17 |  #4

Very fine indeed and good star shape across the frame. Better than a lot of scopes could manage.




  
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Nighthound
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Dec 28, 2008 12:12 |  #5

Outstanding Bobby, now THAT is seriously deep.


Steve
Canon Gear: 1D Mark IV | 1D Mark II | 5D | 20D | 500L IS (f/4) | 100-400L
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AxxisPhoto
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Dec 28, 2008 16:27 |  #6

Amazing Bobby! Keep it up.


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slitherjef
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Dec 29, 2008 14:08 |  #7

Very nice! The Rose has nice contrast and saturation and picking up the outer parts of the area is icing on the cake


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Adrena1in
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Location: Winchester, Hampshire, UK.
     
Dec 30, 2008 05:46 |  #8

That's an incredible shot, but, I dunno, you got so many pinpoint stars in the image it almost looks noisy...do you know what I mean?


Canon EOS 450D, Sigma 18-200mm, Canon 50mm f/2.5 Macro, 2x TC, Revelation 12" f/5 Dobsonian, Mintron PD2285-EX webcam.

  
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Celestron
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Dec 30, 2008 10:16 |  #9

Adrena1in wrote in post #6968548 (external link)
That's an incredible shot, but, I dunno, you got so many pinpoint stars in the image it almost looks noisy...do you know what I mean?

You do know that the Rose (external link) being close to Orion is in part of the MW (external link) don't you ? Thats the reason for so many stars .




  
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Nighthound
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Dec 30, 2008 13:44 |  #10

Going this deep in star dense regions can give the look of color noise. I'm sure the larger file would look much different. You think this is a bunch of stars, try going deep on the Veil Nebula.


Steve
Canon Gear: 1D Mark IV | 1D Mark II | 5D | 20D | 500L IS (f/4) | 100-400L
SteveEllwoodPhotograph​y.com (external link)

  
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strgazr27
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Dec 30, 2008 20:44 |  #11

Thanks everyone!

You should try processing this image with all those stars ;) I can tell you that those are stars and not noise. Like Steve said, try the Veil and prepare yourself Lol.

I'm still bouncing back and forth over the 300. I could pick up a 1.4X TC and be close to the 300 although the IQ is probably not as good but I begin to wonder if it's really almost $2700 better for what I am using it for? The F/2.8 would be nice but if that was the case I would think the 200 F/2 would be a better choice no?

CS's


Gripped 40D - 17-40L - 70-200 f/4L - Gitzo GT0531 Mountaineer - Astrotrac TT320X-AG
www.strgazr27.zenfolio​.com (external link)

http://www.stonyhillob​servatory.com (external link)

  
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FarmerDave8N
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Dec 30, 2008 21:16 |  #12

Very nice, Bobby! I've got that lens as well, I really like it - are you stopping it down at all?

I know what you mean about the lenses vs the small scopes - I got a whopping 48 minutes on M45 the other night with my SV70ED for the first time - not at all impressed with the star shapes in the outer third my images, I'll have to give it a try with a FF/FR. However, for grab and go/outreach, it's kind of hard to beat.


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