YONGNUO Master Flash TTL HSS for Canon 1DX， 1DS Series， 1D Series， 5DIII， 5DII， 5D， 6D， 7D， 650D/T4I， 600D/T3I， 550D/T2I， 500D/T1I， 450D/Xsi， 400D/Xti， 1100D， 1000D<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Supports high-speed sync flash， with high-speed synchronize with all shutter speeds， the maximum shutter sync up to 1/8000 </span></li><li><span class="a-list-item"> It makes things easier on lightening the flashlight synchronously by using PC synchronous line </span></li><li><span class="a-list-item"> The different sound ways will prompt the different working conditions of the flashlight so as to make you focus on shooting only </span></li><li><span class="a-list-item"> TTL flash with large guide number， which reaches the level of the mainstream hot shoe flashes， supports HSS， TTL/M/multi mode </span></li><li><span class="a-list-item"> Multiple trigger more supported， the YN568EX II can be triggered by hot shoe， flash command slave mode， optical S1 and S2 </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41bQ5EJpyCL.jpg" noproxy>