Fast FX-format prime lens with ultra-wide 20 mm focal length and bright f/1.8 maximum aperture. Makes an exciting choice for creative photographers who want to exaggerate perspectives. With high-performance optics and compact, lightweight design, this is a versatile lens, well suited to interiors, street reportage, broad landscapes, and underwater photography, or for shooting immersive movie scenes. The fast f/1.8 maximum aperture delivers shallow depth of field, plus smooth bokeh and clear low-light shots. High-performance optics deliver edge-to-edge sharpness with minimal distortion.