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Thread started 16 Aug 2009 (Sunday) 00:03   
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tmf3lehigh
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This is my first post in Astronomy and Celestial. I saw a post the other day on Jupiter and its moons and decided to give it a try for myself. I used a 500/4 with a 2x extender on my 40D (Wimberley mount, no tracking). The single image was tweaked in Aperture and noise reduced with Nik Define, and then cropped. Ohh, and this was shot in northern NJ, 12 miles from mid-town Manhattan, so not the best dark sky conditions. :lol:

I'd appreciate any comments and suggestions for improvement.

IMAGE NOT FOUND IMAGE IS A REDIRECT OR MISSING!
http://tfinetti.smugmu​g.com .../620966687_6ZBAP-X2-1.jpgexternal link
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

Post #1, Aug 16, 2009 00:03:08


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JuZ
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Very nice :D

Post #2, Aug 16, 2009 03:33:01


JuZ ;)
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HaroldC3
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That's a single image? Wow!

Post #3, Aug 16, 2009 10:36:40


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Madweasel
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Excellent shot. That 500L is something isn't it? One day...

Post #4, Aug 16, 2009 12:32:53


Mark.

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TMCCaptured
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Holy Crap, that is a great Image! Well Done

Post #5, Aug 16, 2009 12:36:26


Why Die Wondering?

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Aaagogo
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who, what, har,....

i'm lost for words... a 500 with extender cause this...

mind showing what the original image looks like.

Post #6, Aug 16, 2009 13:29:44


http://photography-on-the.net ...p?p=4655753&postcou​nt=953 Your 1st 10,000 images are your worst
One photo out of focus is a mistake, ten photo out of focus are an experimentation, one hundred photo out of focus are a style

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troypiggo
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Very nice - good to see the banding etc.

Post #7, Aug 16, 2009 14:54:27


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artyman
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What was the exposure?

Post #8, Aug 16, 2009 14:55:53


Art that takes you there. http://www.artyman.co.​ukexternal link
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Inspeqtor
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artyman wrote in post #8469910external link
What was the exposure?

Here is the EXIF data:

shutter speed 1/160

aperture f8.0

ISO 1600

Post #9, Aug 16, 2009 15:28:55


Charles

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tmf3lehigh
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Thanks for all the comments--they are very much appreciated.

Aaagogo wrote in post #8469556external link
who, what, har,....

i'm lost for words... a 500 with extender cause this...

mind showing what the original image looks like.

This is the original, unprocessed image:

IMAGE NOT FOUND IMAGE IS A REDIRECT OR MISSING!
http://tfinetti.smugmu​g.com ...s/621800918_h4b9k-L-1.jpgexternal link
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

Post #10, Aug 16, 2009 21:07:37


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gcflora
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You did this without a telescope?! Wow

Post #11, Aug 16, 2009 23:39:43


Craig
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markjpcs
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Excellent shot!

Post #12, Aug 17, 2009 00:01:03


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Adrena1in
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That really is impressive. Far, far, FAR better than anything I've ever managed with my 1200mm telescope!!

Post #13, Aug 17, 2009 02:23:24


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tmf3lehigh
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HaroldC3 wrote in post #8468816external link
That's a single image? Wow!

Yes, a single image. I took multiple images--would stacking them help? I also took some bracketed exposures.

gcflora wrote in post #8472073external link
You did this without a telescope?! Wow

No telescope, although I would like one. I just don't know if I'll have much use for one where I am located.

Adrena1in wrote in post #8472515external link
That really is impressive. Far, far, FAR better than anything I've ever managed with my 1200mm telescope!!

I guess when factoring in the crop factor of the 40D, this was taken at 1600mm, and then cropped significantly.

Post #14, Aug 17, 2009 07:41:52


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Bernoulli
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Not 1600 mm, you're at 1000 mm. The crop factor doesn't enter into the focal length because you're not full-frame. Think about it, those pixels in the middle of your sensor have no idea how big the sensor is, so this would have no effect on the magnification.

Having said that, at 1000 mm I think you CAN consider that to be a telescope!

Post #15, Aug 17, 2009 12:09:16 as a reply to tmf3lehigh's post 4 hours earlier.


Rick
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