Canon has applied for a patent for a wide-angle lens (18mm, 20mm, 21mm, 24mm, 28mm in the examples) for RF mount.
- Example 1 (18mm F1.8)
Focal length 18.54
F number 1.85
Half angle of view (°) 49.41
Image height 21.64
Lens total length 107.66
BF 14.09
- Example 2 (24mm F1.8)
Focal length 23.83
F number 1.85
Half angle of view (°) 42.24
Image height 21.64
Lens total length 104.66
BF 15.90
- Example 4 (20 mm F1.4)
Focal length 20.48
F number 1.44
Half angle of view (°) 46.56
Image height 21.64
Lens total length 124.66
BF 13.16
- Example 5 (21mm F1.8)
Focal length 21.36
F number 1.85
Half angle of view (°) 45.37
Image height 21.64
Lens total length 105.66
BF 14.88
- Example 8 (28 mm F1.8)
Focal length 28.08
F number 1.85
Half angle of view (°) 37.61
Image height 21.64
Lens total length 92.66
BF 12.16
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