Specifications: *Focal Length:35mm *Maximum Aperture:f/1.4 *Minimum Aperture:f/16 *Lens Mount：Sony E Mount*Focus Type: Manual Focus *Optical Design:7 Elements in 6 Groups *Angle of view: 45° *Minimum Focus Distance:11" / 28 cm *Diaphragm Blades:10 *Filter Size: 39mm*35mm format equivalent: 52.5mm Package Listing: TTArtisan 35mm F1.4 APS-C Camera Lens; A Front Lens Cap; A Rear Lens Cap; A Lens Hood; Warranty Card; User Manual Well Built Lens: :) This lens is made of Avation grade aluminum alloy material with anodized surface, which is durable.:) Focusing is smooth and well-weighted with the use of multiple thread, normally used in high-end lenses.:) The aperture ring has subtle clicks and it’s smooth to turn and grippy on your fingers. Good Image Quality: :) It achieves good picture quality and low dispersion in such a small and light volume. :) The bright f/1.4 maximum aperture offers great control over depth of field and also benefits working in low-light conditions. :) Providing with a 52.5mm equivalent focal length, the perspective close to the human eye which makes the works more full of life smell. :) 0.28m minimum focusing distance, showing more details in your images. Comact and Portable: :) With the weight of 180g and the length of 44mm, it can be carried around and taken out to take pictures at any time, which is particularly friendly to female photographers. NOTE Please note that there are some differences in the engraving of the optical structure on the black and silver lens. The silver lens will be shipped from April 14th(Wednesday) according to the order.