Canon EF 40mm F 2.8 STM

EF Mount Lens Aperture Range: f/2.8-22 Aspherical Lens Element STM Stepping Motor for Smooth, Silent AF Lightweight & Compact: 4.6 oz, 1" Long Lens Coatings Reduce Ghost & Flare 7-Blade Circular Diaphragm Minimum Focus Distance: 11.81" 64mm Equivalent on APS-C Cameras STM Focus in Video on Select EOS Rebels