Fully Compatible with Sony E-mount full-frame and APS-C cameras including in-camera Image Stabilization, Direct Manual Focus, MF Assist mode, Eye AF and optical corrections. Super fast f2.0 aperture for very low light image capture and video. For AF drive system FíRIN 20mm f/2.0 FE AF adopts quick responsive and silent ring-shaped ultrasonic motor. Coupled with GMR sensor AF system performs fast and accurate focusing.