12mm F2.8, etc. Sigma registered three Sony E-mount ultra-wide-angle patents

   Sigma has newly registered the specifications of three Sony E-mount fixed-focus lenses in Japan. The detailed specifications are as follows. From the data, the length of the three lenses is still Normally, which lens are you most looking forward to?

Sigma12-24F4DGSigma 12-24F4DG2mm

   Focal length: 12.40mm

   Aperture: 2.93

Angle of view: 122.09 degrees

  Image factory height: 21.63mm

  Lens length: 138.00mm

  Back focal length: 20.6500mm

2mm

   Focal length: 14.48mm

   Aperture: 2.07

   Angle of view : 114.25 degrees

  Image factory height: 21.63mm

  Lens length: 136.00mm

  Back focal length: 20.5832mm

2mm

  Focal length: 14.48mm

   Aperture: 2.91

   Viewing angle: 114.26 degrees

  Image factory height: 21.63mm

  Lens length: 120.00mm

  Back focal length: 20.4000mm

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