Features: 35mm F2.0 fixed-focus full frame lens, optical structure uses retrofocus type, 5 groups of 8 element, including 3 venner lens group,containing an super low dispersion ED-lens and imported ultrahigh refractive indexs heavy lanthanide glasses,effectively removing chromatic aberration and enlarge the max-aperture. Optical glass lens and multi-layer coating technology are adopted to effectively improve the light transmittance and control backlight of double images. 35mm focal length ,belong to small wide angle lens ,fits for taking photos of various objects indorrs and outdoors, elastic shooting comasition, which can contain the people and views together when taking objects at close range. Large aperture, reachs f2.0, good effect of the background of the virtual, it can add more human element in the picture when taking main subjects. Optical constructure provides wider view of angle ,shorter minimum shooting distance ,different shooting purpose,fit for taking landscape, portrait and food. Specifications: Material: Magnesium Aluminum Alloy+Optical Glass+Multi-layer Coating Size: Mixed Size Full Frame: support Focal Length: 35mm Filter Size: 55mm Aperture: F2.0 Nearest Focusing distance: 0.25m Optical Structure: 8 element in 5 group Applicable Bayonet: E-mount, F-mount, EF-mount(optional） Lens Purpose: Humanities, Environment and Portraits Anti-shake Function: no Full Frame: Support Package Includes: 1x 35mm F2.0 Full Frame Lens 1x Front Cover 1x Rear Cover 1x Lens Bag note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions.