Rokinon HD HD8M-P 8mm f/3.5 HD Fisheye Lens with Removable Hood for Pentax<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"> Manual focus; aperture range of f/3.5-22 </span></li><li><span class="a-list-item"> 10 elements in 7 groups 1 spherical lens </span></li><li><span class="a-list-item"> minimum focusing distance of 1-foot </span></li><li><span class="a-list-item"> Ultra-wide 167º diagonal field-of-view for APS-C size image formats will produce a rounded image that doesn't cover the entire frame when used with compatible full frame digital cameras or 35mm film cameras </span></li><li><span class="a-list-item"> Features improved HD optics for sharper images </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51wQM2-xjHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/419cEdYLAdL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41m4uxXMwnL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/419Wk6izecL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51eYv0l5s3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51RPHgCsIiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ZDYI4CVsL.jpg" noproxy>