Milky way and Scorpius

Started Jun 18, 2012 | Discussions thread
DavidAMWA
Regular MemberPosts: 352Gear list
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Re: Milky way and Scorpius
In reply to corei5, Jun 19, 2012

If I remember correctly if think it is called the "500" rule. Divide 500 by the focal length of your lens. The answer will give you the exposure time in seconds. eg, if your F/L is 50mm, the maximum time of exposure before you get significant trails will be 10 seconds. I hope this helps.

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