Archived posting to the Leica Users Group, 2017/05/11

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Subject: [Leica] Astronomical images from Australia
From: hlritter at twc.com (Howard L Ritter Jr)
Date: Thu, 11 May 2017 09:05:44 -0400
References: <544A7C46-BA7A-45AE-9CDB-A4911F0076B0@twc.com> <CAH1UNJ3WmvsU-iByd8V4oMD-cSpcyrfv=F0xin-d=StHHeo9pg@mail.gmail.com>

Thank you, Jay. You're so well traveled in India, you should think about 
trying the same next time you spend the night at a remote site in the 
Himalayas, where many excellent astroimages have been made. This is the 
intuitive workflow I developed with a little tinkering ? primitive, but 
quick and easy, and results in an image that?s 90% of the way to the best 
that can be achieved with the most sophisticated techniques (an ?Ansel Adams 
factor? of 0.9):

1. Use wide-angle lens wide open, ISO 3200, shutter 30 sec.
2. Put camera on tripod or firm surface.
3. Use magnified Live View and manual focus to get stars as pinpoints. If no 
LV, use infinity stop. If neither, start with estimate, then experiment.
4. Trip shutter gently.
5. Open image in Photoshop, apply appropriate lens correction, then in Image 
> Adjustments > Levels, move white-point slider to brighten stars and 
black-point slider to darken sky. Experiment.
6. Enjoy result!


?howard


> On May 11, 2017, at 5:59 AM, Jayanand Govindaraj <jayanand at gmail.com> 
> wrote:
> 
> Just superb!
> Cheers
> Jayanand


Replies: Reply from jayanand at gmail.com (Jayanand Govindaraj) ([Leica] Astronomical images from Australia)
In reply to: Message from hlritter at twc.com (Howard L Ritter Jr) ([Leica] Astronomical images from Australia)
Message from jayanand at gmail.com (Jayanand Govindaraj) ([Leica] Astronomical images from Australia)