Canon Patent: RF 16-28mm f/2.8, RF 15-28mm f/2.8-4 and RF 15-28mm f/4-5.6 IS
New Canon Patents surfaced online. Canon has filed several new RF mount wide-angle lenses. According to the application details, these Canon Lenses, are 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.
As you know Canon RF 35mm f/1.2L got a new mention again in the rumor mill and expected to arrive in Q3 of 2022. Click here for details. 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.
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
New Canon Patents: 16-28mm f/2.8, 15-28mm f/2.8-4 IS & 15-28mm f/4-5.6 IS Lenses
[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
Join the Canon Camera Users Group to share your Canon photography. Ask and answer questions that arise and help each others!
Via: Digicame-info
