Quote:
Originally Posted by orestis
 WOW, Simply stunning photos and all with a dob, respect  .
Does the Dob actually track them so the objects are still images like a Schmidt cassegrain would?
I prefer the first eta carina shot.
Despite the neighbours lights  you still managed an amazing shot of the horsehead and although the ngc 1300 shot is dim at least its there with spiral arms and everything.
Thanks for posting
Awesome work keep posting
Orestis 
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ThanksOrestis,

yes i have the skywatcher goto synscan system, which is on an alt-azimuth mount. when on this type of mount, the object stays in the field of view but it starts rotating as the sky moves. An equatorial mount counteracts ('offsets' might be a better word) the rotation of the image whilst keeping the object in view. That's why only short exposure times are possible ~20seconds as the image noticeably starts rotating.
Quote:
Originally Posted by jjjnettie
Excellent work Russell.
What program do you use to process your images?
I ask because the back grounds of your Eta Carinas are very green, and there is a plug in for Photoshop that you can use that will fix that. It's called "HLVG" http://blog.deepskycolors.com/archiv...sta-green.html
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Hi jjjnettie! thanks!
i use DSS and Photoshop 6. Hmmm, now that you mention it they do look green

Unfortunately i do my processing on a cheapo small laptop which doesn't have a fantastic screen.
Thanks for that link though - I will definitely download and have a crack at un-greening the Carina!