Sigma Introduces 17mm F4, 50mm F2, and 23mm F1.4 Lenses for L & Sony E-mount Cameras and 16mm F1.4, 30mm F1.4, and 56mm F1.4 for Nikon Z Mount APS-C Cameras; YouTube First
Sigma releases trio of F1.4 primes for Fujifilm X Mount, Sigma's first X Mount lenses
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