Canon has filed several new lens patents for full frame ESO R system cameras. The RF mount super telephoto prime Canon lenses are the 200mm f/2L, 300mm f/2.8L, 400mm f/2.8L, 500mm f/4L, 600mm f/4L, 800mm f/5.6L IS USM.
You can find the patent details below.
Canon RF 200mm f/2L IS USM Lens
Focal Length 200.00mm
F Number 2.06
Half Angle of View 6.17
Image Height 21.64
Total Lens Length 196.01mm
Backfocus 38.50mm
Canon RF 300mm f/2.8L IS USM Lens
Focal Length 292.53mm
F Number 2.90
Half Angle of View 4.23
Image Height 21.64
Total Lens Length 273.92mm
Backfocus 76.35mm
Canon RF 400mm f/2.8L IS USM Lens
Focal Length 392.57mm
F Number 2.90
Half Angle of View 3.15
Image Height 21.64
Total Lens Length 371.15mm
Backfocus
Canon RF 500mm f/4L IS USM Lens
Focal Length 489.05mm
F Number 4.12
Half Angle of View 2.53
Image Height 21.64
Total Lens Length 411.08
Backfocus 100.00mm
Canon RF 600mm f/4L IS USM Lens
Focal Length 585.00mm
F Number 4.12
Half Angle of View 2.12
Image Height 21.64
Total Lens Length 475.00mm
Backfocus 103.93mm
Canon RF 800mm f/5.6L IS USM Lens
Focal Length 777.00mm
F Number 5.80
Half Angle of View 1.59
Image Height 21.64
Total Lens Length 498.01mm
Backfocus 158.67mm
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