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budguinn
Founding Member Platinum Level
Gallery: Latest Photos
Registered: Aug 2003
Location: Gold Beach, Oregon
Posts: 394
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Comet C 2001 Q4 Neat
This is an extremely bright comet...Mag 1..in the west right as the sun has disappeared....(that's fancy astro speak for sunset). This is an extremely hard image for me to get any detail in as shooting in this direction is also shooting at the massive light pollution of the Los Angeles area light dome. The comet is very bright but it is really tough getting tail structure...the tail is rather small with a short exposure of the camera
I attached my astro camera to my 50mm Minolta lens and took 40 1min exposures....then combined them.....then removed the huge light gradient. I had to shoot this through clouds that were moving through the area. The left image is the comet with a false color background...the right is the inverse of the left..with levels to enhance the tail and desaturated.
telescope: 50mm lens piggyback on C8"
camera: SXV-H9C
40pics@1min acquired and processed in AA3 and PS
thanks for looking and commenting,
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warmest regards,
Bud Guinn
Nikon 5700
http://www.budguinn.com
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May 9th, 2004 07:51 PM |
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RVB Pix
Administrator
Gallery: Latest Photos
Registered: Jun 2003
Location: Scotland - France
Posts: 1781
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Thanks for sharing shots and your knowledge again, Bud. I didn't realise there was so much work went into these astro shots.
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Kind regards
Stephen
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May 10th, 2004 09:20 AM |
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budguinn
Founding Member Platinum Level
Gallery: Latest Photos
Registered: Aug 2003
Location: Gold Beach, Oregon
Posts: 394
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Thanks RVB.......yes, it takes much more time to process the shots than it does to take them. But, it's fun to watch the pic come alive.
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warmest regards,
Bud Guinn
Nikon 5700
http://www.budguinn.com
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May 10th, 2004 03:22 PM |
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1969
Senior Member
Gallery: Latest Photos
Registered: Feb 2004
Location: Kent England
Posts: 157
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Coool
Like your Astro shots and really like the one on the left with the replacement background looks very good.
I suppose you have to keep finding th ecomet do you for ech of the 40 x 1min shot sas I assume it moves alot? or is the distance involved make it move slow....sorry if this is a dumb question but I do not take Astro photography just intersted in how it is achieved.
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May 12th, 2004 11:11 PM |
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budguinn
Founding Member Platinum Level
Gallery: Latest Photos
Registered: Aug 2003
Location: Gold Beach, Oregon
Posts: 394
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quote:
Originally posted by 1969
Coool
Like your Astro shots and really like the one on the left with the replacement background looks very good.
I suppose you have to keep finding th ecomet do you for ech of the 40 x 1min shot sas I assume it moves alot? or is the distance involved make it move slow....sorry if this is a dumb question but I do not take Astro photography just intersted in how it is achieved.
Not a dumb question at all.....most comets are very slow moving relative to their background of stars. This comet, Neat, is a very fast moving comet....but my scope does have guide capability so it is possible to guide on the central core or neucleus and track it pretty well. If this is done for any length of time....over a minute or so.....you'll see the star trails because the camera is following the comet and it is moving in relation to the stars.
The challenge is that of getting good definition of the comet and tail and reducing the star trails as much as possible.
bud
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warmest regards,
Bud Guinn
Nikon 5700
http://www.budguinn.com
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May 20th, 2004 08:09 PM |
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