New Canon EF-S 15-85mm f/3.5-5.6 STM Lens to be Coming

Canon EF-S 15-85mm F3.5-5.6 IS USM lens

Current EF-S 15-85mm F3.5-5.6 IS USM

Canon has just filed a new patent of EF-S 15-85mm f/3.5-5.6 lens. This new lens (with “STM” on board) is rumored to be replace the current EF-S 15-85mm F3.5-5.6 IS USM

Egami itself suggests it could be the next kit lens for Canon’s high-end APS-C bodies.
Canon EF-S 15-85mm F3.5-5.6 STM lens patent

 

  • Patent Publication No. 2015-75570
    • Published 2015.4.20
    • Filing date 2013.10.8
  • Example
    embodiment
    Example Zoom ratio Focal length Fno. Half angle Image height Overall length BF
    One 4.61 18.00 27.48 83.00 4.00 4.58 5.80 37.1 26.3 9.3 13.6 133.1 140.0 160.0 37.1 41.6 50.3
    Two 4.88 17.00 26.34 83.00 3.99 4.49 5.80 38.66 27.31 9.31 13.6 127.12 133.64 154.74 35.00 39.12 48.89
    Three 5.28 15.50 22.82 81.84 3.60 4.10 5.85 41.39 30.91 9.48 13.66 128.40 134.55 169.41 35.48 43.51 66.65
    Four 5.26 15.60 22.19 82.00 3.50 3.97 5.84 41.21 31.62 9.46 13.66 128.18 134.63 171.19 36.37 43.38 67.86

Source: EG

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