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<blockquote data-quote="Don Kuykendall_RIP" data-source="post: 77954" data-attributes="member: 6277">Longer shutter speeds = more light&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; shorter shutter speeds = less lightSmaller F-stops numbers = larger openings&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; larger openings = more lightA half second exposure is&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ONE STOP darker&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; than a one second exposure. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; A 1/125 exposure&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; is TWO STOPS brighter&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; than a 1/500 exposure. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; A 1/1000 exposure&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; is THREE STOPS darker&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; than a 1/125 exposure.2.8 &gt; 4.0 &gt; 5.6 &gt; 8 &gt; 11 &gt; 16 &gt; 22&nbsp; Each one is 1 stop from the one next to it.1/15sec &gt; 1/30sec &gt; 1/60sec &gt; 1/125sec &gt; 1/250 sec &gt; 1/500sec &gt; 1/1000sec Each one is 1 stop from the one next to it.Since f-stop and shutter are both measured in stops, keeping balance is&nbsp; easy. If you take away 2 stops from the aperture, you can give 2 stops&nbsp; back with the shutter and end up with the same exposure level.</blockquote>

[QUOTE="Don Kuykendall_RIP, post: 77954, member: 6277"] Longer shutter speeds = more light shorter shutter speeds = less light Smaller F-stops numbers = larger openings larger openings = more light A half second exposure is ONE STOP darker than a one second exposure. A 1/125 exposure is TWO STOPS brighter than a 1/500 exposure. A 1/1000 exposure is THREE STOPS darker than a 1/125 exposure. 2.8 > 4.0 > 5.6 > 8 > 11 > 16 > 22 Each one is 1 stop from the one next to it. 1/15sec > 1/30sec > 1/60sec > 1/125sec > 1/250 sec > 1/500sec > 1/1000sec Each one is 1 stop from the one next to it. Since f-stop and shutter are both measured in stops, keeping balance is easy. If you take away 2 stops from the aperture, you can give 2 stops back with the shutter and end up with the same exposure level. [/QUOTE]

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