Offering a wide-angle perspective ideally suited for landscapes, architecture, and astrophotography, the 21mm f/1.4 Dragonfly Lens from IRIX is a sophisticated prime lens designed for Canon EF-mount cameras. Benefitting the broad angle of view is an advanced optical design that features aspherical, ultra-low dispersion, and high-reflectance optical elements to control various aberrations and distortions, as well as maintain accurate and consistent color. Complementing the optics, this 21mm f/1.4 offers a manual focus design for fine-tuned control and incorporates a unique focus lock to secure the focusing position at any point for consistent, repeatable shooting. The lens is compatible with semi-automatic electronic controls, enabling you to adjust the aperture directly from the camera. Additionally, the lens is also compatible with camera focus confirmation systems allowing you to be assured you set the focus correctly.