Tamron SP 15-30mm F/2.8 Di VC USD Canon-mount lens review

  Specifications and features Announced towards the end of 2014, the Tamron SP 15-30mm F/2.8 Di VC USD is a competitively-priced, ultra-wide, full-frame, high-speed zoom targeting the traditional press market as well as landscape and architecture photographers. Like recent models from Tamron, it has several attractive features, including a silent sonic-type motor, optical image stabilization, and anti-ghosting nano-type (eBAND) and hydrophobic fluorine coatings. It also has a circular 9-bladed aperture to help with rendering rounded highlights and smoothing transitions to out-of-focus areas. The optical formula consists of 16 elements arranged in 13 groups, with a mix of aspherical surfaces and LD glass to