A Canon patent discussing optical formulas for two lenses for the Canon RF mount (EOS R).

Canon patent application 2020-79965A discusses optical formulas for a RF 24-70mm f/2 lens and a RF 24-105mm f/4L IS USM lens.

RF 24-105mm f/4 L IS USM

• Zoom ratio: 4.12
• Focal length: 24.72 50.92 101.84 mm
• F number: 4.12 4.12 4.12
• Half angle of view: 41.19 23.02 11.99
• Image height: 21.64 21.64 21.64 mm
• Lens length: 125.34 142.50 169.34 mm
• Back focus: 17.88 19.75 30.96 mm

RF 24-70mm f/2

• Zoom ratio: 2.75
• Focal length: 24.70 35.76 67.86 mm
• F number: 2.06 2.06 2.06
• Half angle of view: 41.22 31.18 17.68
• Image height: 21.64 21.64 21.64 mm
• Lens length: 152.24 158.86 179.82 mm
• Back focus: 12.93 19.69 30.66 mm

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

• A 8mm f/4 circular fisheye lens for the Canon EOS R system
• A battery grip that works with differently siszed cameras
• A 100-400mm f/5.5-7.1 lens for APS-C cameras. EOS M or DSLR?
• RF 17-70mm lens for EOS R system
• IBIS coming to the EOS M and PowerShot lineup?
• Patent Application: mirrorless camera with large display and virtual control wheel
• Patent Application: IBIS and Lens IS Working Together
• Patent application for high speed mirror movement and control
• Patent application for an RF 14-28mm f/2 lens
• Patent application for an RF 50mm f/1.8 lens
• Patent application for a smart lens cap
• Patent application for celestial auto-focus
• Patent application describing a Pop-Up Flash With LED
• Patent application describing the optical formula for a RF 70-300mm F/4-5.6 IS lens for EOS R systems
• Patent application describing how to improve burst rate by compressing raw files
• Patent application describing a new way to review photos from a sequential shot
• Patent application that describes technology to improve wireless communication while reducing power consumption
• Patent application to spot and reduce moire artefacts in image data
• Patent application for weather sealed lens adapter
• Patent application for AI powered predictive camera control system
• Patent application for 18-55mm kit lens with LCD display
• Patent application to reduce noise in image files

[via Hi Lows Note]