After years of particularly limited lens choice, things are about to change for Canon’s crop-sensor (APS-C) cameras like the excellent EOS R7, because Canon has finally given the key to the door of its RF-mount to Sigma and Tamron. It really is about time. The leading third-party lens makers already provide a wide number of prime and zoom lenses for crop-sensor and full-frame cameras from Sony, Nikon, Fujifilm, and more. Sigma’s E-mount lenses for Sony have been around for years
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