The 21mm f/1.5 Lens for Canon RF from TTArtisan is a classic manual focus wide-angle prime lens well suited to landscapes, room interiors, street photography, and more. It features a bright f/1.5 maximum aperture, allowing it to be used in low-light situations and providing finer creative control over depth-of-field. The combination of five high-refractive index elements and one aspherical element provide sharpness and realistic color transmission throughout the image area. The integrated lens hood reduces potential lens flare for optimal color saturation.