The latest patents from Fujifilm, Voigtlander, Tamron, and Sigma

Tamron 17-50mm f/4 VC Patent Found

Voigtlander 23mm f/1.2 APS-C and 35mm f/1.4 Full Frame Patents Found

Sigma 50-140mm F/2.8 DC DN and Sigma 70-200mm f/2.8 DG DN Patents Found

Fujinon GF17-35mm f/4, GF17-30mm f/4, and GF17-35mm f/4-5.6 Patents Found

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