Asobinet spotted a newly published Sigma patent that described the optical design of the 28mm f/1.4 DG DN and 14mm f/2 DG DN lenses. Focal length: 14.48 F-value: 2.07 Angle of view: 114.27 Image height: 21.63 Total length: 128.00 Back focus: 20.0000 Focal length: 27.50 F-value: 1.46 Angle of view: 76.53 Image height: 21.63 Overall…...
Published By: SonyAlphaRumors - Tuesday, 20 June, 2023