Introduction As part of the company’s “Global Vision” line, it replaces the earlier EX-series 50mm F1.4 DG HSM and has a complex optical construction consisting of 13 elements in 8 groups and a minimum focus distance of 40cm. Like previous Art-series models, it has sonic-type AF motor for smooth and quiet focusing, and externally it bears a strong resemblance to the previous Art-series primes. The lens is notably larger than its predecessor, however, featuring a large 77mm accessory thread, measuring 3.9 x 3.4” (100 x 85mm), and weighing in at a substantial 28.7 oz (815g).After previously
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