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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 02 Oct 2011 (Sunday) 15:20
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jerr6
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Oct 02, 2011 15:20 |  #1

3hrs 30mins so far. hope to get more of this.

AT65EDQ
modded T1i
cg-5 mount

i wish i could of gotten more data. i only have til it goes past my roofline which is about 2 AM.

IMAGE: http://farm7.static.flickr.com/6127/6204232885_1ec5e7c692_z.jpg

http://www.flickr.com/​photos/astrographer/ (external link)
http://500px.com/jerr6 (external link)

  
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Celestron
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Oct 02, 2011 15:35 |  #2

Looks good so far i'm surprised you didn't get more data tho with 3-1/2 hrs ? Also can you post a larger image and give some detail with your equip used ??




  
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megrac
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Oct 02, 2011 22:39 |  #3

Nice. What ISO and length of subs? i like the small stars.


60D | Canon 15-85 | Canon 200mm f/2.8L II | Canon 400mm f/5.6L | 580EX II. And a heap of Astrophotography gear.

  
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chris.bailey
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Oct 03, 2011 02:34 |  #4

Very very nice. I'm also suprised you dont have a bit more depth after 3 1/2 hours.




  
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jerr6
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Oct 03, 2011 05:52 |  #5

thanks! iso 1600, 3min subs. Chris its pretty bad light pollution here. this was stretched pretty good. i usually tend to go too far . im sure my 3 hrs is only equivalent to a dark sites 1 hr or less.


http://www.flickr.com/​photos/astrographer/ (external link)
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ramv
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Oct 16, 2011 16:15 |  #6

Wonderful detail and small stars. I imaged the same object with a 70-200 2.8 at 200mm

http://www.flickr.com …157627136712042​/lightbox/ (external link)

I like your stars and detail better!




  
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jerr6
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Oct 16, 2011 22:53 |  #7

thanks! wow you got alot more data with pretty similar exposure time. darker skies make a huge difference.


http://www.flickr.com/​photos/astrographer/ (external link)
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ramv
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Oct 17, 2011 00:13 |  #8

jerr6 wrote in post #13259867 (external link)
thanks! wow you got alot more data with pretty similar exposure time. darker skies make a huge difference.

Hi Jerr6,
Dark skies do make a pretty huge difference in my experience. I also used a fast 2.8 camera lens which collects light quicker but I suspect has aberrations. I've got to test it out on my new AP mount to be sure though!




  
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Nighthound
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Oct 17, 2011 14:43 |  #9

Great work especially from light polluted skies. I have a felling there's a bit more signal hidden in there that could be carefully coaxed out in Photoshop using curves. Add more time to this as you get it, just try to compose each session as similarly as possible so you don't loose much image on the outer edges of your stack.

My best on this one is 5 hours with an unmodified 20D and TAK Sky 90 @ f4.5 and was collected on two consecutive nights using a Hutech IDAS LP filter in moderate light pollution. My subs were 4 minutes and ISO 800. If you get a chance check my gallery below to see what I ended up with. Like you I wonder what I could have done with some darker skies.


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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jerr6
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Oct 17, 2011 19:32 |  #10

thanks Nighthound. your gallery is very good! i always put marks on a piece of tape to help line up for next time.


http://www.flickr.com/​photos/astrographer/ (external link)
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