Wide-Angle Lens For Canon APS-C Cameras/ 52mm Filter Size/ 38.4mm (35mm Equivalent)/ Aspheric Lens Element/ Optimized Lens Arrangement And Coating/ Circular Aperture (7 Blades)/ Aperture Mechanism Uses Micro-Stepping Drive Control/ Full-Time Manual Focus/ Minimum Focusing Distance Of 0.5 Ft./0.16 M/ Maximum Magnification Of x0.27/ Black Finish