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Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

December 24, 2006 06:02 PM Forum: CCD Imaging and Processing/Solar System

Widefield Mosaic of the South West

Posted By Alan Friedman
Hi Stefan,

I keep coming back to this picture - with the excellent resolution and sensitive processing it is really a pleasure to explore.

Beautifully done!

happy holidays -
Alan

December 26, 2006 07:32 PM Forum: CCD Imaging and Processing/Solar System

The Lord of the Ring

Posted By Alan Friedman
Hi Richard -

What a great movie - thanks for sharing it!

best -
Alan

December 29, 2006 06:06 PM Forum: CCD Imaging and Processing/Solar System

Saturn 29 Dec 06

Posted By Alan Friedman
Hi Ivan - a very nice saturn. Nice description too of the excitement of discovering a little steady air. It's a great feeling - I'm always tempted to wake someone up to share it with me!

Alan

January 2, 2007 06:25 PM Forum: CCD Imaging and Processing/Solar System

Tycho

Posted By Alan Friedman
Hi Ed -

Even seen without the splash of ejecta rays, it's clear that Tycho is the new kid on the block. Super detail from your scope in this fine picture!

Alan

January 2, 2007 06:28 PM Forum: CCD Imaging and Processing/Solar System

My best Saturn yet

Posted By Alan Friedman
Hi Steve -

A very fine saturn portrait - I like the gentle hand you've used to process the image, on the rings and cassini division especially.

Alan

January 2, 2007 06:30 PM Forum: CCD Imaging and Processing/Solar System

North West widefield & Gauss

Posted By Alan Friedman
Hi Stefan -

You've stitched together another exceptional mosaic here - beautifully done!

Alan

January 3, 2007 11:23 PM Forum: CCD Imaging and Processing/Solar System

Lunar processing help(?)

Posted By Alan Friedman
I think your pictures look very good.

When you capture the streams, display the histogram (if your software supports this) and be sure you are not clipping off the data on the highlight end - or check the exposure settings to make sure the whites are not allowed to become fully white. If you do your processing in Photoshop, you can select the highlights using the color channel selection tool and then invert the selection so that the highlights are omitted from processing. High contrast sections of the image will be well done long before other regions are done cooking.

Alan

January 4, 2007 03:42 AM Forum: CCD Imaging and Processing/Solar System

Message for Alan Friedman

Posted By Alan Friedman
Hi Wes -

Very glad to hear that. Here's hoping the jet stream has a little vacation time coming...

best wishes -
Alan

January 4, 2007 04:49 PM Forum: CCD Imaging and Processing/Solar System

Some mountains and a few good rilles

Posted By Alan Friedman
Hi Wes -

Wonderful! The scraped terrain from Rima Hadley to the foothills at the southern rim of Archimedes (tantalizingly off the field) is beautifully rendered.

Is this from a recent session?

best -
Alan

January 4, 2007 04:54 PM Forum: CCD Imaging and Processing/Solar System

Humboldt from last night

Posted By Alan Friedman
Hi Stefan -

I am struck by this image - the hint of depth at this high sun angle is very special and must have been quite difficult to process to retain such a natural result. Makes me want to spend some time at the eyepiece on the bright sunlit regions a long way from the terminator - something I don't often do.

Thanks!
Alan

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