Starry night in the Catskill Mountains [1605 x 2000] [OC]Submitted by Star-Fever t3_z7u5i0 in EarthPorn
Star-Fever OP t1_iyctsye wrote
Reply to comment by Mr--Joestar in Starry night in the Catskill Mountains [1605 x 2000] [OC] by Star-Fever
20 seconds each. The maximum length of star exposures is usually governed by the "rule of 500" so you don't get oblong stars or star trails in each frame. Divide 500 by the focal length of your lens (and use full-frame equivalent for APS-C cameras). That'll give you a good exposure time in seconds.
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