top | item 15225747 (no title) johndoe90 | 8 years ago I wonder where are the star trails. Wouldn't 30s exposure make earth movement noticeable? discuss order hn newest hug|8 years ago The answer is the 500 rule. To avoid star trails, exposures should be less than 500/focal-length-in-135-equivalent.In other words, if he shot this on his 'favourite' Rokinon 24mm, an exposure time of 20 seconds is reasonable to avoid all star trails. johndoe90|8 years ago Didn't know that one. Thanks a lot!
hug|8 years ago The answer is the 500 rule. To avoid star trails, exposures should be less than 500/focal-length-in-135-equivalent.In other words, if he shot this on his 'favourite' Rokinon 24mm, an exposure time of 20 seconds is reasonable to avoid all star trails. johndoe90|8 years ago Didn't know that one. Thanks a lot!
hug|8 years ago
In other words, if he shot this on his 'favourite' Rokinon 24mm, an exposure time of 20 seconds is reasonable to avoid all star trails.
johndoe90|8 years ago