<p>Questions regarding the functionality of the <a href="http://nikonites.com/products/dslr-3/d7000-99/" target="_blank">D7000</a> and Yongnuo's 568ex<br /><br />1. The 568ex clearly states that it has HSS for Nikon..........How do I activate HSS with the d7000?..... I am unable to go beyond 1/250 with the flash attached or the flash in slave mode. I am using the commander mode with the 568ex acting as a slave...it won't let me go beyond 1/250<br /><br />2. Also in slave mode, (with my camera as the commander)...does the zoom and the aperture info change on the flash unit. It does when the flash is attached and every time I turn the aperture or the zoom dial, the info on the flash unit changes...it doesn't do the same when the flash is not attached and in slave mode...should it change?<br /><br />Please help!!!!<br /><br /><br /></p>