Sigma 28-45mm f/1.8 DG DN Art Lens for L Mount

Where innovation meets precision, the SIGMA 28-45mm F1.8 DG DN | Art Lens stands as the world's first full-frame zoom lens with a constant maximum aperture of F1.8. This groundbreaking lens delivers exceptional sharpness and clarity, rivaling that of prime lenses, and is a testament to SIGMA's pioneering spirit in crafting unique, large-aperture zoom lenses. Building on the legacy of the SIGMA 18-35mm F1.8 DC HSM | Art and the SIGMA 24-35mm F2 DG HSM | Art, this lens is a versatile addition to the Art lineup, offering photographers and filmmakers unparalleled creative possibilities.

Designed for full-frame cameras, the SIGMA 28-45mm F1.8 DG DN | Art lens features an inner zoom mechanism that maintains a constant lens length, enhancing stability and ease of use whether shooting handheld or mounted on a tripod or gimbal. With a minimum focusing distance of 30cm across the entire zoom range and a maximum magnification ratio of 1:4 at the telephoto end, this lens excels in close-up shooting, allowing for precise focus in confined spaces without compromising image sharpness.

Despite its advanced capabilities, the lens is remarkably lightweight, weighing less than 1kg. This makes it an ideal choice for photographers and videographers seeking portability without sacrificing performance. The lens also accommodates a versatile filter size of Dia. 82mm, ensuring convenience in various shooting scenarios.

Optically, the SIGMA 28-45mm F1.8 DG DN | Art lens is engineered to deliver superior performance. It incorporates 5 SLD elements and 3 aspherical elements to rigorously correct aberrations, including axial chromatic aberration, ensuring clear images with minimal coloration. The lens's advanced coatings, including SIGMA's Nano Porous Coating and Super Multi-Layer Coating, effectively minimize flare and ghosting, providing high-contrast, richly saturated images even in challenging lighting conditions.

For filmmakers, the lens offers suppressed focus breathing, allowing for natural focus pulls during video recording. The high-speed AF system, driven by an HLA (High-response Linear Actuator), ensures fast and precise focusing with near-silent operation, making it ideal for video work. The lens also features a bi-wire driven focus ring for smooth manual focusing and an adjustable rotation angle, enhancing both photographic and cinematic applications.

Additional features such as a de-clickable aperture ring, aperture ring lock switch, and two customizable AFL buttons provide photographers with versatile control over their shooting experience. Built to withstand the elements, the lens boasts a dust- and splash-resistant construction, with a water- and oil-repellent coating on the front element, ensuring reliability in harsh outdoor environments.

Completing the package is a locking petal-type hood, designed to shield the lens from stray light and enhance image quality, which can be reversed for compact storage. The SIGMA 28-45mm F1.8 DG DN | Art lens is a remarkable tool that redefines the boundaries of zoom lens performance, offering unmatched versatility and optical excellence for both stills and video.