New Patents: Sony 50mm F1.4 , 60mm F1.2 and 80mm F1.2

Sony.JP has just filed several new patents for its prime lenses.

Example 1 (50mm F1.2)

  • Focal length: 53.90
  • F number: 1.21
  • Half angle of view: 21.76
  • Image height: 21.63
  • Optical total length: 130.00

Example 2 (35mm F1.4)

  • Focal length: 34.66
  • F number: 1.44
  • Half angle of view: 32.01
  • Image height: 21.63
  • Optical total length: 96.88

Example 3 (80mm F1.2)

  • Focal length: 78.40
  • F number: 1.23
  • Half angle of view: 15.39
  • Image height: 21.63
  • Optical total length: 160.00

Example 4 (60mm F1.2)

  • Focal length: 60.00
  • F number: 1.21
  • Half angle of view: 19.79
  • Image height: 21.63
  • Optical total length: 145.00

Example 5 (50mm F1.4)

  • Focal length: 48.50
  • F number: 1.46
  • Half angle of view: 24.00
  • Image height: 21.63
  • Optical total length: 101.56

The 50mm F1.4 has a different optical system from the current T* FE50mm F1.4, but we are wondering if the 50mm F1.4 will be renewed. The 60mm F1.2 and 80mm F1.2 are slightly half-finished focal lengths, and if a medium telephoto of F1.2 were to be commercialized, it would be the 85mm F1.2, but what will happen?

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