Tamron today introduced two new Di III series zooms for Sony, a super-tele for full-frame cameras and a wide zoom for APS-sensor models. Both will be available in June. Tamron 150-500mm F/5-6.7 Di III VC VXD (Model A057) The Tamron 150-500mm F/5-6.7 Di III VC VXD (Model A057) is a relatively compact super-tele that will especially appeal to wildlife and sports photographers. Its closest competitor in Sony’s own lens lineup is arguably the FE 200-600mm F5.6-6.3 G OSS, and though the Tamron’s range is shorter, the lens is more compact even when fully extended to 500mm and priced about $600 less than the Sony. As a full-frame model, the lens can also be used with APS-sensor cameras, providing an equivalent range...