Why choose the Sigma 30mm f/1.4 Dc Dn Contemporary Lens for Canon Rf? This lens is a perfect blend of outstanding optical performance and a compact design, making it an ideal choice for photographers seeking a versatile F1.4 standard lens. With its fast F1.4 maximum aperture, this lens excels in low-light conditions, allowing you to capture stunning images with beautiful background blur that effectively isolates your subject from its surroundings.Designed with practicality in mind, the lens features a dust and splash-resistant mount. The rubber sealing at the lens mount acts as a barrier, preventing dust and other foreign particles from entering the lens or the camera's sensor chamber, ensuring longevity and reliability in various shooting environments.The Sigma 30mm f/1.4 Dc Dn lens incorporates Thermally Stable Composite (Tsc) materials, which offer superior performance compared to traditional aluminum.