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Another Saturn

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#1 Dave24

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Posted 18 March 2009 - 03:37 AM

Quick stack of 500 frames --- any advice is appreciated, thank you.

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#2 Moises

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Posted 18 March 2009 - 08:01 AM

Dave good image, you should stack more frames to improve the approach in processing

#3 Kal

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Posted 18 March 2009 - 08:17 AM

Hi Dave,

If you have photoshop and you adjust the levels so that you clip some of the top range off, it will help to brighten the image and show the subtle color details in the photo better.

Moises - I think 500 frames is plenty for a Toucam. I only used around 140 of 600 frames for this pic

#4 Dave24

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Posted 18 March 2009 - 11:43 AM

Thanks, Moises and Kal. I had clear skies but the frost was overwhelming, so I had to pack up after 10 minutes. All my gear was soaked in no time at all. Registax 5 seems like it can handle more efficiently a higher number of frames, and I'll perform additional tweaks in photoshop as suggested. Thanks again.

#5 sfugardi

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Posted 18 March 2009 - 12:21 PM

Dave, good resolution. It seems like the collected data may not have been bright enough. I'd recommend cranking up the gain and/or gamma to ensure capture of the faint detail next time out.

Regards,
Steve

#6 Dave24

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Posted 18 March 2009 - 12:25 PM

Thanks, Steve. Because of the infrequency with which I image Saturn, I'm still tinkering with the settings, so I'll be sure to do just that next time out.

I've attached a revised version. Thanks again to everyone.

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#7 sfugardi

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Posted 18 March 2009 - 12:39 PM

Dave, this one is definitely better, adding in more blue helps. Many people use 30% or more gamma which you can always take out later with a curve adjustment. Hopefully we can catch some excellent seeing in the weeks ahead with Saturn at a perfect time for viewing

Regards,
Steve

#8 NCMountains

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Posted 18 March 2009 - 01:27 PM

You guys are just tearing up Saturn!

#9 imjeffp

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Posted 18 March 2009 - 05:21 PM

You might tweak a little more, but I'd say your revised stack is probably approaching the limits of your gear and seeing. That is to say, it looks like you've done a good job controlling what you can.

#10 Dave24

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Posted 18 March 2009 - 07:33 PM

I agree, Jeff. This was 500 luminous frames in 3/5 seeing, with zero RGB frames. In light of that, I don't believe any more enhancement is really possible.

But I'm pretty happy with the result considering.






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