Designed primarily for travel photography, it has been engineered to be the smallest in its class, less than 9.1cm and only 496g. The 102° (18mm) to 130° (10mm) angle of view provides flexibility for photographers to compose landscape or architecture photos with ease. The aperture system is carefully re-designed to produce the best sun-star renderings among all UWA lenses on the market. This compact and light lens comprises of 14 elements in 10 groups with 2 pcs of aspherical elements and 1 pc of Extra-low dispersion elements. The patented optical design successfully minimizes distortion and chromatic aberrations and delivers superb optical performance from corner to corner.