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Nikon DSLR Cameras
D7100
Nikon D7100 and Yongnou 560iii
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<blockquote data-quote="WayneF" data-source="post: 271516" data-attributes="member: 12496"><p>Shutter speed limitation does NOT depend on which flash is used. The issue is the focal plane shutter, with ANY flash. </p><p>The D7100 at 1/250 second maximum shutter sync speed with flash is one of the few fastest ones.</p><p></p><p>The first thing to be understood is that the Speedlight is called a speedlight because it is VERY fast.</p><p>At macro distances (low flash power), the flash duration is much faster than any shutter speed.</p><p></p><p>The 1/250 second shutter duration may seem relatively slow, but if the flash light duration only lasts 1/20,000 second and then it is dark the rest of the time, then the flash stops any motion, with an effective 1/20000 second exposure duration.</p><p></p><p>A speedlight is the way High Speed Photography is done. See <a href="http://www.scantips.com/speed.html" target="_blank">Capability of flash units for high speed photography</a></p><p></p><p>My suggestion is that your macro photos have absolutely no problem with motion blur, because the speedlight flash is fast enough to prevent it. If you had FP flash, it is continuous light (no longer a speedlight) and you give that up. And continuous sunlight can blur it too, but give the speedlight a try, it will be great.</p><p></p><p>See <a href="http://www.scantips.com/lights/flashbasics2c.html" target="_blank">Four Flash Photography Basics we must know - Maximum Shutter Sync Speed</a> about Maximum shutter sync speed with flash.</p><p></p><p>There are flashes than can do FP flash mode... which is NO LONGER a speedlight. </p><p>See <a href="http://www.scantips.com/lights/flashbasics2b.html" target="_blank">Four Flash Photography Basics we must know - Auto FP and HSS</a> about FP flash mode (which is faster shutter, but very slow flash (no longer a speedlight). This Yongnuo cannot do FP, but if imagined important, the YN568EX can do FP flash. There are major downsides to FP flash, a very different flash mode, with much more to it than shutter speed.</p></blockquote><p></p>
[QUOTE="WayneF, post: 271516, member: 12496"] Shutter speed limitation does NOT depend on which flash is used. The issue is the focal plane shutter, with ANY flash. The D7100 at 1/250 second maximum shutter sync speed with flash is one of the few fastest ones. The first thing to be understood is that the Speedlight is called a speedlight because it is VERY fast. At macro distances (low flash power), the flash duration is much faster than any shutter speed. The 1/250 second shutter duration may seem relatively slow, but if the flash light duration only lasts 1/20,000 second and then it is dark the rest of the time, then the flash stops any motion, with an effective 1/20000 second exposure duration. A speedlight is the way High Speed Photography is done. See [URL="http://www.scantips.com/speed.html"]Capability of flash units for high speed photography[/URL] My suggestion is that your macro photos have absolutely no problem with motion blur, because the speedlight flash is fast enough to prevent it. If you had FP flash, it is continuous light (no longer a speedlight) and you give that up. And continuous sunlight can blur it too, but give the speedlight a try, it will be great. See [URL="http://www.scantips.com/lights/flashbasics2c.html"]Four Flash Photography Basics we must know - Maximum Shutter Sync Speed[/URL] about Maximum shutter sync speed with flash. There are flashes than can do FP flash mode... which is NO LONGER a speedlight. See [URL="http://www.scantips.com/lights/flashbasics2b.html"]Four Flash Photography Basics we must know - Auto FP and HSS[/URL] about FP flash mode (which is faster shutter, but very slow flash (no longer a speedlight). This Yongnuo cannot do FP, but if imagined important, the YN568EX can do FP flash. There are major downsides to FP flash, a very different flash mode, with much more to it than shutter speed. [/QUOTE]
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Nikon DSLR Cameras
D7100
Nikon D7100 and Yongnou 560iii
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