SIGMA 30MM F/1.4 DC DN CONTEMPORARY LENS FOR SONY E
Sony E Mount/APS-C Format45mm (35mm Equivalent)Aperture Range: f/1.4 to f/16Three Aspherical SurfacesOne High-Refractive Index ElementSuper Multi-Layer CoatingStepping AF MotorRounded 9-Blade DiaphragmTSC Construction, Brass Bayonet Mount