|  | 
| Image by Alex Morley | 
This
image is last fall in Grand Teton
  National Park , Wyoming Wyoming 
For
astral images like this, you need to go out on a moonless night. Try to be away
from city ”light pollution” as much as possible. You will need a tripod for
long exposures. It is best to use a lens with as wide an aperture as possible;
mine was f2.8. An f1.8 or f1.4 is even better. Start at ISO 1600. Use the
lowest f-stop on your lens, and begin with a 15 second exposure. You then
adjust your settings from there. For this image I ended up at ISO 3200, f 2.8,
25 seconds; Nikon D3s, Nikkor 14-24mm lens at 20mm, manual focused on infinity.
Auto focus may not work if there is not enough light. If you go more than 30
seconds you will start to see the stars streaking. And don’t forget to bring
your flashlight. I like to use a climber’s headlamp to keep my hands free.It's worth staying up late or getting up early to get images like this. And it's a lot of fun experimenting. Most newer cameras are capable of pushing ISO up to at least 1600 with good results. Next time you are away from the city try this!
Alex Morley
www.alexmorleyphoto.com
Facebook:
www.facebook.com/alex.k.morley
Google+:
http://bit.ly/KUzHF4
 
 
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