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Canon Patent EF 17-35MM F/4-5.6 IS STM

Canon Patent EF 17-35MM F/4-5.6 IS STM

Do you own a Canon full frame DSLR? Do you not have the expendable income for a flashy L lens? Well rejoice because it looks like Canon are still hard at work developing ‘non-L’ EF lenses!

The firm have recently patented an EF 17-35MM F/4-5.6 IS STM which will be an exciting prospect for those who can’t stretch to the ‘full-fat’ EF 16-35mm f/2.8L II USM. It is in fact the first time such a zoom will be available outside the L family for Canons EF mount line up, which is very exciting:

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: CN.

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