Sigma 50mm F1.4 ART DG HSM Lens for Sigma<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="" 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"> 50mm focal length </span></li><li><span class="a-list-item"> 75mm equivalent focal length on APS-C cameras， 80mm equivalent focal length on Canon APS-C cameras </span></li><li><span class="a-list-item"> F1.4 maximum aperture; F16 minimum </span></li><li><span class="a-list-item"> Ring-type ultrasonic-type AF motor with full-time manual focusing </span></li><li><span class="a-list-item"> 77mm filters </span></li><li><span class="a-list-item"> 0.4m/15.7" minimum focus </span></li><li><span class="a-list-item"> Available in Canon EF， Sony Alpha， Sigma SA， Nikon F (FX) mounts </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41txE4HVICL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41ypLulJItL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41b-mg0MvcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41fUi1Hg9tL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41qQtzXMx%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xCFCDgl9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31P0XTxRgUL.jpg" noproxy>