A 13mm f/1.4 ultra-wide prime for Fujifilm X-mount APS-C cameras, its fast aperture and 14-element optics with 4 ED elements deliver sharp, low-distortion images in low light. The STM autofocus is quiet and quick for video, and the non-bulb design protects the lens during close-ups. Best for landscape and architecture photographers who need a bright, compact wide-angle for handheld night shots and indoor work.