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General Photography
Low Light & Night
Star Photography One on One
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<blockquote data-quote="Wahugg" data-source="post: 133597" data-attributes="member: 10685"><p>It's absolutely possible to see star trails within 30 seconds.</p><p></p><p>Here is the general rule of thumb:</p><p>For FX sensors: 600/focal length = expose time when star trails begin to get noticeable ex: 600/30mm= 20 seconds</p><p>For DX sensors: 400/focal length = expose time when star trails begin to get noticeable ex: 400/30mm= 13.3 seconds</p><p></p><p>Hope this helps</p><p></p><p>-Wahugg</p></blockquote><p></p>
[QUOTE="Wahugg, post: 133597, member: 10685"] It's absolutely possible to see star trails within 30 seconds. Here is the general rule of thumb: For FX sensors: 600/focal length = expose time when star trails begin to get noticeable ex: 600/30mm= 20 seconds For DX sensors: 400/focal length = expose time when star trails begin to get noticeable ex: 400/30mm= 13.3 seconds Hope this helps -Wahugg [/QUOTE]
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