trader
Senior Member
- Joined
- Aug 7, 2008
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it mostly depends on location. you need to get somewhere where light pollution from cities is minimal. i think the general guide line is 300 km from a major city center.
for shots of stars you have to be aware of the planet's movement. with wider focal lengths like 17 mm on a full-frame (10mm on crop) you can shoot for about 30 seconds before you create star trails. with longer focal lengths like 200mm you're limited to only a few seconds. for this shot i used a 14mm on full-frame at f/2.8, 800 ISO for 30 seconds. what a lot of star shooters do is take a bunch of shots and stack them together using a program like this http://deepskystacker.free.fr/english/index.html. it lets you get better details out of the stars. my shot was only 1 frame but hopefully soon i'll be doing it again with 20 or so shots. i'm not sure how much better it'll look since i've never done it before but i guess we'll see
for shots of stars you have to be aware of the planet's movement. with wider focal lengths like 17 mm on a full-frame (10mm on crop) you can shoot for about 30 seconds before you create star trails. with longer focal lengths like 200mm you're limited to only a few seconds. for this shot i used a 14mm on full-frame at f/2.8, 800 ISO for 30 seconds. what a lot of star shooters do is take a bunch of shots and stack them together using a program like this http://deepskystacker.free.fr/english/index.html. it lets you get better details out of the stars. my shot was only 1 frame but hopefully soon i'll be doing it again with 20 or so shots. i'm not sure how much better it'll look since i've never done it before but i guess we'll see