Sigma 10-20mm f/4-5.6 EX DC HSM Lens Sony Alpha DSLR A700， A350， A300， A200， A100 SLR Digital Camera<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"> HSM (Hyper-Sonic Motor) allows for fast autofocus speeds &amp; quiet shooting and is capable of full-time manual operation </span></li><li><span class="a-list-item"> Three aspherical lens elements offer excellent correction for distortion </span></li><li><span class="a-list-item"> Three SLD (Special Low Dispersion) glass elements employed for effective compensation of color aberration </span></li><li><span class="a-list-item"> Internal Focusing System allows the convenient use of a polarizing filter for creative effects &amp; improves the optical performance of the lens at various distances </span></li><li><span class="a-list-item"> Awarded the TIPA award， best consumer lens in Europe '2006 </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ul9Fsz79L.jpg" noproxy>