Tamron has announced the release of the 70–300mm F4.5–6.3 Di III RXD, a lens deemed as ‘the world’s smallest and lightest telephoto zoom lens for Sony E-mount full-frame mirrorless cameras.’ The lens is constructed of 15 elements in 10 groups, including a low dispersion element for minimizing aberrations. Autofocus is driven by Tamron’s Rapid Extra-Silent Stepping Drive (RXD) motor technology. Other specifications include an aperture range of F4.5 (at 70mm) to F32 (at 300mm), a seven-blade aperture diaphragm and a minimum focusing distance of 80cm (31.5”) on the wide end and 150cm (59.1”) on the tele end. Tamron says the lens is moisture-resistant thanks to an array of seals in ‘critical locations’ and its compact design measures in at just 14.7cm (5.8”) long, 77mm (3”) diameter and weighs only 545g (19.2oz). The lens is expected to retail go on sale starting October 29 for $549, but Tamron notes the […]
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