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Canon Patent Application: Canon RF Primes
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Canon Patent Application: Canon RF Primes

I know there's been alot of talk about Canon needing to get lower cost primes and lenses out for the RF mount, that not all lenses can be in the $2000-$3000 range.  Take heart, this patent application is meant for you.

In this patent application, Canon describes quite a few lower cost Canon RF mount primes;

  • RF 35 F1.8
  • RF 20 F2.0
  • RF 35 F2.8
  • RF 45 F2.8
  • RF 35 F2.0

and also making an appearance is a zoom, a Canon RF 16-35 F4.0, a lens I'm certainly looking forward to for the RF mount.

The lens details are as follows;

Focal length: 35.60 
F number: 1.85
Half angle of view: 31.22
Image height: 21.64 
Lens length: 81.87 
Back focus: 13.49 

Focal length: 20.50 
F number: 2.06
Half angle of view: 46.54
Image height: 21.64 
Lens length: 90.13 
Back focus: 13.50 

Focal length: 35.70 
F number: 2.88
Half angle of view: 31.22
Image height: 21.64 
Lens length: 60.00 
Back focus: 13.15 

Focal length: 44.70 
F number: 2.85
Half angle of view: 25.83
Image height: 21.64 
Lens length: 62.63 
Back focus: 13.13 

Focal length: 35.91 
F number: 2.06
Half angle of view: 31.07
Image height: 21.64 
Lens length: 50.50 
Back focus: 15.05 

Focal length: 16.48 24.02 33.75 
F number: 4.12
Half angle of view: 52.70 42.01 32.66
Image height: 21.64 
Lens length: 117.64 109.16 110.13 
Back focus: 11.50 19.17 29.63 
 

Japan Patent Application: 2019-204115

Japan Patent Application: 2019-204114

Japan Patent Application: 2019-204113


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