Canon EF 50mm f/1.4 USM Prime Lens, ideal for events like birthdays, weddings, anniversaries, etc. Compatible with several Canon DSLR cameras, full-frame cameras and APS-C sized image sensors. Focal length is fixed and quality images are constructed with 7 elements in 6 groups. Maximum aperture of f/1.4 helps keeping the subject in center of frame when clicking in low-light. High shutter speed along with maximum aperture clicks pictures in an instant. Traveller’s delight as it works fine in almost all lighting conditions. Further, Equipped with two high-refraction lens elements and one Gaussian optics. Also USM focus motor with full-time manual focus override and 45cm closest focusing distance.