The Canon 40mm f/2.8 STM Telephoto Lens is designed to fulfill your digital photographic needs. It delivers an ideal image quality from the center to the periphery thanks to its advanced lens configuration. This ultra slim and lightweight lens features an aspherical element, a bright 2.8 aperture, and optimized coatings that minimize ghosting and flare while providing exceptional color balance. Plus, the EF 40mm f/2.8 STM's design helps the photographer avoid overwhelming their subjects with a large lens and to remain discreet in sensitive shooting situations with no compromise in performance. Also, its diminutive design is complemented by features such as a newly developed stepping motor for smooth and quiet continuous AF while capturing video with the Canon EOS Rebel T4i DSLR and a circular aperture (7 blades) for beautiful soft-focus backgrounds. Packed with all these and more, this EF 40mm f/2.8 STM Lens makes it easy to throw backgrounds out of focus, grab details, or approach subjects you'd rather not get too close to.