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Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

August 31, 2005 03:49 PM Forum: CCD Imaging and Processing/Solar System

Website for my images

Posted By Alan Friedman
Hi Mike -

Gorgeous - and a wonderful resource for anyone with a love for luna. I spent a lot of time with your Theophilus mosaic as I was working on an image from last week (which I will post shortly) - this is a truly extraordinary panorama.

Thanks for sharing the link to your work -

Alan

August 31, 2005 04:59 PM Forum: CCD Imaging and Processing/Solar System

Mars August 31 2005

Posted By Alan Friedman
Fabulous, Wes - the best rendition of the surface that I have seen yet this apparition. I hope you get those color filters spinning soon!!

Alan

September 1, 2005 02:10 AM Forum: CCD Imaging and Processing/Solar System

Mars 31 august not too bad

Posted By Alan Friedman
Hi Jan -

That's a great image - lots of detail is visible.

Alan

September 4, 2005 11:22 PM Forum: CCD Imaging and Processing/Solar System

Mars - DMK21F04

Posted By Alan Friedman
Hi Kirk -

That is a very fine monochrome image - was it unfiltered? When the seeing cooperates RGB images from the new high resolution B&W cameras should gives us finer views than 2 years ago - I think.

Alan

September 4, 2005 11:33 PM Forum: CCD Imaging and Processing/Solar System

Walter

Posted By Alan Friedman
Hi Ed -

Nice to be able to compare the two fine images. My opinion is a little different - i prefer the first and don't see any additional detail offered by the sharper versions - the additional contrast is nice on the crater floor but comes at the expense of artifacts in the highlights and shadows.

Applying sharpening or any processing filter globally to the image will always be a compromise. The best way to apply these filters is selectively - for instance the crater floor can hand more unsharp mask than the highlights and deep shadows in the image. Photoshop is the most powerful tool (allowing the most selection control) of any program I know for this - do any of the astro imaging programs allow the processing tools to be applied selectively?

Alan

September 4, 2005 11:49 PM Forum: CCD Imaging and Processing/Solar System

Apennine Mountains

Posted By Alan Friedman
Hi Kirk -

A very beautiful study in black and white. I enjoy the images at lower resolution too and am often in this same position - trying to find something to work on those too frequent unbarlowable nights (hows that for a new word?)

Alan

September 6, 2005 09:05 PM Forum: CCD Imaging and Processing/Solar System

a webcam planetary

Posted By Alan Friedman
Robert Heffner said:

Btw, we used to have a cabin in the mountains of Potter County north of Cherry Springs. The area definitely lives up to its name of God's Country. I was not into astronomy back then but I do remember the incredible darkness of the night sky.

Looks like you had a great time at Cherry Springs.

The Black Forest Star Party is a really nice event and pretty close - 125 miles from Buffalo. It must have been great to have a weekend retreat nearby. I love the couple of nights of camping and am glad to have the company of astronomy friends when the coyotes start howling in the middle of the night!

Alan

September 8, 2005 04:26 AM Forum: CCD Imaging and Processing/Solar System

Rima Hyginus 08/25/05

Posted By Alan Friedman
Hi Wes -

Very beautiful and detailed image!

Alan

September 8, 2005 04:28 AM Forum: CCD Imaging and Processing/Solar System

Mars from Ohio on 9-7

Posted By Alan Friedman
Mars looks very good from Ohio thanks to your very careful processing! Great work.

Alan

September 9, 2005 04:24 PM Forum: CCD Imaging and Processing/Solar System

Another Mars this morning

Posted By Alan Friedman
Hi Ed -

Another beautifully processed image. It would be great to see if you can subdue the ring effect on the bright limb, but nevertheless, congratulations on these fine shots!

Alan

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