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<blockquote data-quote="Revet" data-source="post: 228407" data-attributes="member: 17612">On my Nikon D3100, it has a max flash sync speed of 1/200th of a second.&nbsp; Why is it that if the flash speed is so incredibly short (much faster than 1/200th of a second), you run into problems if using shutter speeds faster than 1/200 (a shutter blind causing an area of the photo to be darker).&nbsp; In other words, why if the duration of the flash is so much shorter than 1/200th of a second, can't it be synced to flash when the shutter is fully opened at speeds faster than 1/200th of a second??Another part to this question, the pocket wizards talk about being able to use faster shutter speeds in midday shooting with fill flash,&nbsp; does that function work on a D3100, or is the D3100 always limited to 1/200th?Do I ever need faster than 1/200th&nbsp; (I was able to freeze a hummingbird wings with that speed).I have read all sorts of Google posts on flash sync but I must be missing something.</blockquote>

[QUOTE="Revet, post: 228407, member: 17612"] On my Nikon D3100, it has a max flash sync speed of 1/200th of a second. Why is it that if the flash speed is so incredibly short (much faster than 1/200th of a second), you run into problems if using shutter speeds faster than 1/200 (a shutter blind causing an area of the photo to be darker). In other words, why if the duration of the flash is so much shorter than 1/200th of a second, can't it be synced to flash when the shutter is fully opened at speeds faster than 1/200th of a second?? Another part to this question, the pocket wizards talk about being able to use faster shutter speeds in midday shooting with fill flash, does that function work on a D3100, or is the D3100 always limited to 1/200th? Do I ever need faster than 1/200th (I was able to freeze a hummingbird wings with that speed). I have read all sorts of Google posts on flash sync but I must be missing something. [/QUOTE]

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