Tokina AT-X AF 16-28mm FX For Nikon<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"> Manufacturers 3 Year Limited USA Warranty card is included in the box. For all repairs， USA warranty card and an authorized USA retailer's sales receipt must be sent together. </span></li><li><span class="a-list-item"> Silent DC Motor with GMR senor to increase AF Speed. </span></li><li><span class="a-list-item"> Spherical and Super-low Dispersion glass elements for maximum resolution. </span></li><li><span class="a-list-item"> Tokina's exclusive One-touch Focus Clutch Mechanism. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/416%2BdDaFm%2BL.jpg" noproxy>