This 23mm Lens is Available in L-Mount,Sony E-mount and Fujifilm X Mount*, the versatile SIGMA 23mm F1.4 DC DN | Contemporary for APS-C mirrorless is the ideal lens for creative everyday photography. Its F1.4 aperture creates expressive portraits and is handy when available light is limited. Using high quality optics and weighing only 340g, the lens can be mounted on modern mirrorless bodies to create a highly portable camera system without any compromise to image quality. Key features A creative focal length with excellent usability Create expressive portraits with rich bokeh effects, low-light landscapes and characterful everyday shots with the bright F1.4 aperture and 35mm equivalent focal length. With 13 elements in 10 groups which including 3 SLD elements and 2 aspherical elements, the lens produces sharp, clear images even in backlit environments. Its compact size and lightweight construction make the wide-standard SIGMA 23mm F1.4 DC DN the ideal for everyday use. Designed exclusively for APS-C mirrorless cameras The lens has been designed exclusively for APS-C mirrorless cameras, resulting in a compact, lightweight body weighing just 340g*. It also features a quiet, high-speed stepping motor that can lock onto subjects quickly and can be used with AF modes such as focus tracking and eye detection. Use the large focus ring to fine-tune focus with Dynamic Manual Focus (DMF). The lens also supports switching between non-linear and linear focusing when customised using the SIGMA USB DOCK UD-11 (sold separately / for L-Mount only). It is also compatible with AF assist functions found on compatible cameras (E-mount only). Expands the range of APS-C format F1.4 prime lenses With the addition of the 23mm F1.4 DC DN, the SIGMA Contemporary line now has four APS-C format F1.4 prime lenses. Together they work perfectly as a cohesive ultra-wide aperture set, collectively weighing less than 1.5kg. This means users can build a lightweight mirrorless camera system that delivers superb consistency in image quality, colour accuracy and character.