New Canon Patents: 16-28mm f/2.8, 15-28mm f/2.8-4 IS & 15-28mm f/4-5.6 IS Lenses

New Canon Patents filed for several new RF mount wide-angle models. The patent application describes the 16-28mm f/2.8, 15-28mm f/2.8-4 IS and 15-28mm f/4-5.6 IS Lenses for Canon full-frame mirrorless cameras.

Canon patent application 2022063727 (Japan) discusses optical formulas for three RF mount lenses:

  • RF 16-28mm f/2.8
  • RF 15-28mm f/2.8-4
  • RF 15-28mm f/4-5.6 IS

[Publication number] P2022063727
[Publication date] APRIL 22, 2022
[Patent application title] Optical system and imaging device

Canon RF 16-28mm f/2.8

Focal length 16.45 21.00 27.50
F number 2.88 2.88 2.88
Half angle of view 52.71 46.44 38.49
Real image height 19.00 21.00 21.64
Overall length 134.57 124.99 119.35
Back focus 14.07 14.07 14.07

Canon RF 15-28mm f/2.8-4 IS

Focal length 15.40 21.00 27.50
F number 2.88 3.50 4.04
Angle of view 54.51 46.40 38.65
Real image height 19.00 21.00 21.64
Overall length 114.50 109.55 110.39
Back focus 14.20 14.20 14.20

Canon RF 15-28mm f/4-5.6 IS

Focal length 15.40 21.00 27.50
F number 4.00 4.82 5.60
Angle of view 54.51 46.63 38.94
Real image height 19.00 21.00 21.64
Overall length 103.50 101.16 103.50
Back focus 14.20 14.20 14.20

Take a look at the list of Canon cameras that are expected to be announced in 2022. Read Complete List of Canon RF Lenses and see also Canon RF mount Lens Roadmap 2022.

Join the Canon Camera Users Group to share your Canon photography. Ask and answer questions that arise and help each others!

Via: Digicame-info

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