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Canon Patent Application: Mirrorless Cinema Zooms
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Canon Patent Application: Mirrorless Cinema Zooms

While these at first look like they are high end kit zooms for mirrorless, they are simply too complex and have an image circle of 14mm which is not Canon's usual image circle for APS-C (13.66mm).  This and the lens complexity makes me believe these are for cinema applications on the RF mount.  If not, then these are extremely high end RF APS-C zooms.

Canon RF Cinema 18-55 F2.0

focal length          18.51  34.71  55.00  
F number               2.06   2.06   2.06  
Half angle of view    37.10  21.97  14.28  
Image height          14.00  14.00  14.00  
Lens total length    250.01 250.01 250.01  
BF 12.95 12.95 12.95  

Canon RF Cinema 16-70mm F2.8

Focal length          16.51  36.08  68.00  
F-number               2.80   2.80   2.80  
half view angle       40.30  21.21  11.63  
Image height          14.00  14.00  14.00  
total lens length    223.02 223.02 223.02  
BF                    24.40  24.40  24.40 

Canon RF Cinema 19-50mm F2.0

Focus Distance        19.01  33.19  50.00  
F Number               2.05   2.06   2.06  
Half angle of view    36.38  22.87  15.64  
Image height          14.00  14.00  14.00  
Lens total length    225.07 225.07 225.07  
BF                    13.38  13.38  13.38  

Canon RF Cinema 18-55mm F2.0

focal length          18.51  34.86  55.00  
F number               2.06   2.06   2.06  
Half angle of view    37.10  21.88  14.28  
Image height          14.00  14.00  14.00  
Lens total length    235.03 235.03 235.03  
BF                    12.94  12.94  12.94  

Japan Patent Application 2020-194056

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