Re: [Utah-astronomy] Just posted video processing tutorials
Thanks, David. Wonderfully done. It is that grey point slider in PhotoShop that IMHO really makes the difference. It stretches between the black and grey point - apparently leaving the grey to white point alone. That way you can bring out the detail in the black-to-grey point zone without overexposing the bright foreground stars. - Kurt
Kurt, No problem. The way I had been shown before for initial stretching was to use the curves pallet and drag the white and black points in. After doing that for a while, I noticed that all of my bright areas and stars were blowing out, and have seen this in a lot of other images as well. I emailed Ivan Eder and asked him how he got such good results with his stretching, and he pointed me towards stretching with the levels tool instead. This way your not affecting the brightest parts of the image, like the stars, and in the final result, you will have some rich color preserved in the brightest parts. If you've never seen Ivans work...hes a DSLR guy as well, and imho the best out there. Ivan's Website http://eder.csillagaszat.hu/en.htm I hope to have some audio in the videos after finals sometime. Cheers, David Canopus56 wrote:
Thanks, David. Wonderfully done. It is that grey point slider in PhotoShop that IMHO really makes the difference. It stretches between the black and grey point - apparently leaving the grey to white point alone. That way you can bring out the detail in the black-to-grey point zone without overexposing the bright foreground stars. - Kurt
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com
Hi David, Will you let me know when the soundtrack is added? I'm fascinated with this and with your great results, but it's hard to follow without sound. Many thanks, Joe --- On Sun, 12/6/09, David Rankin <David@rankinstudio.com> wrote: From: David Rankin <David@rankinstudio.com> Subject: Re: [Utah-astronomy] Just posted video processing tutorials To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Sunday, December 6, 2009, 11:45 PM Kurt, No problem. The way I had been shown before for initial stretching was to use the curves pallet and drag the white and black points in. After doing that for a while, I noticed that all of my bright areas and stars were blowing out, and have seen this in a lot of other images as well. I emailed Ivan Eder and asked him how he got such good results with his stretching, and he pointed me towards stretching with the levels tool instead. This way your not affecting the brightest parts of the image, like the stars, and in the final result, you will have some rich color preserved in the brightest parts. If you've never seen Ivans work...hes a DSLR guy as well, and imho the best out there. Ivan's Website http://eder.csillagaszat.hu/en.htm I hope to have some audio in the videos after finals sometime. Cheers, David Canopus56 wrote:
Thanks, David. Wonderfully done. It is that grey point slider in PhotoShop that IMHO really makes the difference. It stretches between the black and grey point - apparently leaving the grey to white point alone. That way you can bring out the detail in the black-to-grey point zone without overexposing the bright foreground stars. - Kurt
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com
participants (3)
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Canopus56 -
David Rankin -
Joe Bauman