2012年10月8日星期一

How to Photograph the Stars on the Night

national geographic

Yesterday, it was reported that there would be a meteor shooting across the sky on that night. But it’s pity that most of people didn’t catch a glimpse of any trail. Don’t be regretful. There will be two successive meteors tomorrow, which leave opportunities to feast your eyes. Therefore, how about studying some star photographic skills from how-to wiki? It will help to freeze the brightest “diamonds”.   

Pick a spot
The first thing is pick a prime location. City lights, airports and other brightly lit areas on the ground cause light pollution. Pick a spot far away from the city, preferably in the mountains, in the desert or in a rural area.

Mount your camera to a telescope
You don't need to attach your camera to a telescope to take star photos. Wide-field sky images work just fine with your camera's lens. But if you want to photograph the moon or planets, you'll need to mount your camera to a telescope.

Take your best shot
national geographic
Mount your camera, set the aperture to open all the way, set the focus to infinity and hold the shutter open for several minutes. Brighter objects only require 2 to 10 minutes while distant galaxies may require 20-30 minutes. Don't touch your rig while the shutter is open. You can hold a piece of cardboard in front of the lens when you trip the shutter. Then, pull it away when the camera "settles".

How to shoot meteors
Pick your target based on the meteor shower. Make sure the moon isn't in your shot, since it's so bright it will drown out the stars and meteors.
You should set your lens for a wide field of view. Keep the shutter open for 2 to 10 minutes. If you're lucky, one or more meteors will cross the camera's field of view during that time. If not, try again!

More practice
Keep a log of the objects you shoot along with notes on cloud cover, light pollution.
Start with the moon. It's big and it's bright, making it easy to photograph, even in areas with moderate light pollution.