About this item

• 50mm focal length, Lens not zoomable
• 75mm equivalent focal length on APS-C cameras, 80mm equivalent focal length on Canon APS-C cameras
• F1.4 maximum aperture; F16 minimum
• Ring-type ultrasonic-type AF motor with full-time manual focusing
• 77mm filters. 77mm filters. 0.4m/15.7″ minimum focus. Please use a USB dock for calibrating the focus