Following up on their stellar 12-40mm f/2.8 Pro lens, the newest member of the "Zuiko Pro" family is the telephoto sibling to the 12-40mm: the 40-150mm f/2.8 M.Zuiko Pro. Technically, it was unveiled all the way back at the launch of the E-M1 as an "in-development" project, however the 40-150 f/2.8 was officially announced as a bona fide product last month just prior to Photokina. This telephoto zoom lens is the latest move in Olympus's drive to sway professional photographers away from their big, bulky DSLRs and into the more compact yet still...
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