Tamron 11-20mm

Constant f/2.8 for Sony A6000 series

In a world first for Sony’s E-mount APS-C cameras, the 11-20mm f/2.8 Di III-A RXD brings a constant aperture ultra-wide lens into play. Designed to be compact and light, at just 86.2mm in length and weighing just 335g, the new optic’s optical configuration consists of 12 elements in 10 groups, including two “precisely located” GM (Glass Moulded Aspherical) lens elements for edge-to-edge sharpness. www.tamron.eu; £819/$829