Here are the first Sigma 56mm F1.4 DC DN Contemporary lens reviews published on the web. Designed forMicro Four Thirds and Sony E mounts cameras, the bright 56mm lens is in stock and shipping from major stores in US.

Fast 56mm F1.4 prime lens provides a 35mm equivalent focal length of 84mm for Sony E-mount and 112mm for Micro Four Thirds bodies, which is perfect for closeup portrait shootings.
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https://www.dailycameranews.com/2018/12/sigma-56mm-f-1-4-dc-dn-contemporary-lens-reviews-roundup/