Enhance your photography experience with the Laowa 10-18mm f/4.5-5.6 Lens, the widest zoom lens currently available for Sigma, Panasonic, and Leica full-frame L-mount cameras. This high-quality lens is specifically engineered for travel photography, boasting a compact and lightweight design that sets it apart in its class. At less than 9.1 cm long and weighing only 496g (1.1lb), this lens offers unparalleled portability without compromising on performance.The Laowa 10-18mm lens provides a versatile angle of view ranging from 102 1/2 (18mm) to 130 1/2 (10mm), offering photographers the flexibility to effortlessly compose stunning landscape or architecture photos. Its innovative aperture system is meticulously designed to produce the best sun-star renderings among all ultra-wide-angle (UWA) lenses on the market.This reliable lens features a 10-stroke sunstar rendering, a crucial factor for landscape photographers. The Laowa 10-18mm lens has been redesigned to incorporate 5 straight aperture blades, producing well-defined, sharp, and clean 10-stroke sunstars.The lens also includes a 37mm rear filter thread, allowing photographers to easily use Nd filters. Despite its compact size, this lens can accommodate a 100mm-wide filter system, a more cost-effective and less bulky alternative to the 150mm systems used by other UWA lenses.With one of the closest focusing distances among all UWA lenses for Sigma, Panasonic, and Leica cameras, the Laowa 10-18mm lens can focus as close as 15cm, offering an additional degree of fun by enabling mini-macro shots. The lens also features a click/clickless aperture that can be toggled by the switch on the lens barrel, an added feature that is extremely useful for videographers. Comprising 14 elements in 10 groups, including 2 aspherical elements and 1 extra-low dispersion element, the Laowa 10-18mm f/4.5-5.6 lens's patented optical design successfully minimizes distortion and chromatic aberrations while delivering superb optical performance from corner to corner..