• Sigma 18-50mm f/2.8 DC DN Contemporary RF Fit Lens Review

     In a significant move, Sigma have now released the first of their lenses for Canon RF fit crop sensor mirrorless cameras, with a constant f/2.8 maximum aperture. The lens is already well known in L mount, Sony E mount and Fujifilm X mount, so now let's see how the RF version fares, specially tweaked to perform at its best with Canon's APS-C mirrorless cameras. With the 1.6x Canon crop factor, the lens gives a similar field of view to using a 28.8-80mm lens on a full frame 35mm-format camer

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