Pentax SMC DA 55mm f/1.4 SDM Prime Standard Lens w/ Case for Pentax Digital SLR Cameras<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"> Ideal For Portrait， Still Life Or Low-light Photography </span></li><li><span class="a-list-item"> Focal Length: 84.5mm In 35mm Format </span></li><li><span class="a-list-item"> Rounded Diaphragm Blades Create A More Circular Aperture For Smooth， Beautiful Bokeh At Large Aperture Settings </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41p9bSkUHlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51aJ8jq7qPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51MaGHFuBuL.jpg" noproxy>