<div ><span >Highlights</span> <ul> <li>One must handle this lens with extreme care and protect from suspended dust particles</li> <li>Micrometer shake may result horse look like elephant !!! so be prepared to use a good and sturdy tripod along with this lens</li> <li>Technology was used. It creates even lower reflection rate than the original and higher contrast</li> <li>Skateboarders turn to this samyang fisheye cs ii for skate videos and photography to document their exciting moments</li> <li>Easy to carry wherever you go, the lens has a compact, lightweight design and retracts when not in use</li> <li>An Ultrasonic Silent Drive autofocus motor delivers quick and precise focusing performance and a Dynamic Rolling-cam mechanism also contributes to swift focusing movement of the large f/1.4 optical system. This motor also affords full-time manual focus control, and it is possible to focus on subjects as close as 11.8" away at a 1:5 maximum magnification ratio</li> </ul> </div> <p><span class="sc-cdd75544-0 bHXbPt">Overview</span>Aperture - f/1.8, Maximum Magnification Ratio - 0.14X, Filter Diameter - 49 mm, Format - 35 mm Full-Frame, Focal Length - 50 mm</p>