Correcting chromatic aberration well by adopting ED special low dispersion glass. In addition the use of a nine-blade circular aperture and optimization of the spherical aberration shape achieves sharp depiction and natural and beautiful blurring to the periphery of the screen. It is excellent in portability with a compact and lightweight design with a maximum diameter of 78 mm and a length of 82 mm and a mass of about 371 g. The focus drive is equipped with a double linear motor that has excellent response and can be controlled at high speed and high accuracy. Quiet and highly accurate focusing is possible not only at the time of still image shooting but also at the time of moving image shooting. Also equipped with a focus mode switch and focus hold button. Please return it with tra.Unprecedented performance of a high-quality lens. If you don't like the products you can return them within 30 days unless otherwise specified. Mobile and maneuverable for active shooting. Exceptions to this are always explicitly mentioned in the product description. Precise and Quiet Focusing. Every day new and unique offers are published in the various channels.