With the Tamron 50-400mm F/4.5-6.3 Di III VC VXD, we have a lens specifically designed for full-frame mirrorless cameras, and even more specifically, Sony E-mount cameras. With a 50mm wide end, going to 400mm at the telephoto end, we get an 8x optical zoom ratio for £1,249. When used on an APS-C camera, such as the latest Sony A6700, you’ll find you get a 75-600mm equivalent lens!
Being designed specifically for mirrorless cameras, Tamron can use an advanced lens design that factors in the built-in optical aberration correction available on Sony E-mount cameras. This means that barrel and pincushion distortion, vignetting, and lateral chromatic aberration can all be corrected by the camera, allowing a more creative optical construction to be used. This enables the designers to focus on suppressing aberrations that can’t be
