ULTRA-SMALL, ULTRA-LIGHT, ULTRA-SHARP Designed for photographers and film-makers who value the experience of taking a picture just as much as the quality of the final result, the 24mm F3.5 is a premium compact prime that forms part of Sigma’s I series range of lenses. Weighing in at just 225g, it is exceptionally lightweight for a high-performance full-frame lens, making it one of the most portable wide-angle lenses on the market for mirrorless users. Its 24mm focal length makes the lens ideal for landscape, wedding, architecture, street and interior photography, and being so portable, it’s also ideal for travel and general day-to-day use. The 24mm F3.5 is constructed of 10 elements, including 3 aspherical elements and 1 SLD element, which help keep the lens small and light and reduce unwanted aberrations. Image quality is exceptional across the whole frame, even with the lens wide-open at F3.5. As with Sigma’s other I series lenses, the 24mm F3.5 combines its superb optical performance with outstanding build quality and retro styling. Its sleek, all-metal body includes a metal focus ring, a metal aperture ring, a metal lens hood, and even a metal lens cap that attaches to the lens magnetically.