New Patent: Canon EF 17-35mm f/4-5.6 IS STM Lens

Posted on by

Canon has filed the new patent for Canon EF 17-35mm f/4-5.6 IS STM Lens, which is designed for Canon full frame DSLR cameras.

Canon EF 17-35mm f/4-5.6 IS STM Optical Formula

  • Focal distance: 17.50  25.12  34.09
  • F number: 4.00 4.85   5.88
  • A half field angle (degree): 51.03  40.73  32.40
  • Image height: 21.64  21.64  21.64
  • Whole length of the lens: 130.88 128.52 134.05
  • BF: 37.60  49.75  64.06

Via: CanonRumors