This Tamron is a high-speed standard zoom designed for full-frame mirrorless cameras. Compact and lightweight at just 550g, it is an excellent fit for small cameras such as the Sony α7 family. It is designed to produce enough detail for the newest high-resolution sensors, while the large aperture makes it easy to throw the background out of focus with a beautiful ‘bokeh’ effect. The fast, quiet autofocus motor is capable of keeping moving subjects in focus. Overall this lens provides very good performance at a highly competitive price.