Manual Focus, A perfect match for a7 series, full-frame E-mount cameras, Outstanding optical performance in a wide 35mm focal length, Bright F2 maximum aperture</br>Glass compose is 7 pieces 5 groups , which allows you able to shoot the near-circular diffuse plaques, ED glass with multicoating reduces flare and ghosting , effectively improve the transmittance and suppress the ghosting and flare when in backlit shooting .</br>Dust and moisture resistant design, 9 aperture blades can get better focus outside the blur effect</br>All metal materials ,Adopts chrome high precision metal bayonet,which effectively improve the goodness to fit the camera body and the bayonet strength, wear and corrosion resistance for durable use.</br>F2.0 is a very suitable for tourism, street shooting, portrait, documentary and other scenes shot. Supports full-frame .</br></br>Product Description</br></br>An excellent choice as a second manual Focus lens, this full-frame 35mm wide-angle prime features a bright F2 maximum aperture and outstanding overall optical performance. Advanced optics and coatings with a 9-blade circular aperture deliver beautiful images. Internal focusing on a fast and quite linear actuator makes this lens ideal for both still and movie.</br><br/>http://www.amazon.com/gp/product/B01MTKE4V2