The Sigma 30mm f/1.4 Contemporary prime lens for Canon APS-C sensor mirrorless cameras offers an angle of view very similar to human vision. The shallow depth of field at wide-open aperture lets you take stunning portraits and tabletop still life shots. Get the beautiful bokeh effect that only a large-aperture lens can offer and the exceptionally sharp optical performance expected from this prime lens. Combining compactness with outstanding optical performance The front lens element features high-refractive index, high-dispersion glass for extra power and a shorter overall lens length. To optimize the lens for mirrorless cameras, two aspherical lens elements help ensure outstanding image quality and overall compactness. The SIGMA 30mm F1.4 DC DN | Contemporary features SIGMAs inner focus technologies, while lighter lens elements in the focus lens group make possible a more compact actuator. Moreover, this lens offers outstanding stability whether the photographer is shooting handheld or has the camera placed on a surface. Structurally, the lens features materials and parts that contribute to its compact, lightweight structure. In summary, this is an unprecedented lens that combines outstanding optical performance with exceptional portability and usability. Image quality In addition to featuring an optimized layout and power distribution, this lens incorporates one aspherical lens element and one double aspherical lens element, as well as an element made of high-refractive index, high-dispersion glass with high anomalous partial dispersion. By effectively leveraging these technologies, the lens delivers an outstanding level of light to the edges of the image while minimizing lateral chromatic aberration. To correct distortion, the lens takes advantage of the image correction capabilities of the mirrorless camera body, using the corrective power of the optical system to enhance sharpness. Fast and smooth AF By incorporating a stepping motor, the lens offers exceptionally quick and quiet autofocusing performance. This feature is especially useful when using the camera to take videos. | Sigma Unisex 30mm F1.4 DC DN Contemporary Lens - Canon RF in Black