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Canon Patent Application: Canon RF 15-35mm F4L
This is a lens I'm certainly waiting for. We have seen rumors that an ultra wide F4 lens is coming out in 2021. Would I get one of these. I'm waiting for this before jumping into the RF mount to be honest.
Canon states;
The present invention is compact, and it is an object of various aberrations including chromatic aberration to provide a well corrected zoom lens.
Make it happen Canon ;)
The 15-45mm lens design looks more realistic with a 19mm back focus distance than the 16-35mm F4 lens with the rather short back focus distance.
Canon RF 15-35mm F4L
Focus distance 15.45 24.00 33.95
F Number 4.12 4.12 4.12
Half angle of view (°) 54.47 42.03 32.51
Image height 21.64 21.64 21.64
Lens total length 150.01 141.11 140.23
BF 19.25 31.83 46.78
Canon RF 16-35mm F4L
Focal length 16.48 24.00 33.95
F number 4.12 4.12 4.12
Half angle of view (° ) 52.70 42.03 32.51
Image height 21.64 21.64 21.64
Lens total length 132.09 128.84 134.21
BF 10.35 19.54 33.20
Japan Patent Application 2020-190636
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