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 Post subject: Rosette
PostPosted: Thu Dec 29, 2011 1:01 am 
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I didn't just stop at Orion. Remembering I accidentally caught a red blob previously I went back for another go at it too.

I like those... black veins in it? Some day I hope to have the kit to resolve that close up but my lenses are too slow, and the tracking accuracy wouldn't cope even if I did.

H-alpha only data. Combination of:
1x1 minute (not sure it really adds anything but threw it into the processing mix anyway)
10x2 minutes
7x4 minutes

All at ISO1600. Modified Canon 450D with Astronomik H-alpha filter. Canon 135mm f/2L lens.

Side note: I think the jpeg compression has hit this badly. Might do a png of it instead tomorrow.

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3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
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 Post subject:
PostPosted: Thu Dec 29, 2011 9:14 am 
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They're called "Bok Globules" :D

http://www.newforestobservatory.com/wor ... _small.jpg

Greg

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http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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 Post subject:
PostPosted: Thu Dec 29, 2011 9:55 am 
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How much kit would it take to do something like this...

That reminds me, I better check my lottery tickets are up to date!

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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 Post subject:
PostPosted: Tue Jan 17, 2012 9:52 pm 
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Same subject, different day/data. And different processing too.

5x2 minutes
24x4 minutes

If you compare top left with bottom right, there is a change in focus. Need to find out exactly what's off axis - the lens or the sensor.

For scale, this is almost the full frame with less processing. Slight cropping to get rid of the slight variations from drift.

Image

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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 Post subject:
PostPosted: Tue Jan 17, 2012 10:12 pm 
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Very nice. The extra exposure time really seems to have been worth the effort. 8)

Bob.

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