Canon patent application 2019-204115A presents a bunch of prime lenses and a wide angle zoom, all for the RF mount

The Canon patent discusses the optical formulas for these lenses for the Canon EOS R full frame mirrorless system:

• 35mm F/1.8
• 20mm F/2
• 35mm F/2.8
• 45mm F/2.8
• 35mm F/2
• 16-34mm F/4

With more details:

35mm F/1.8 (RF 35mm F1.8 MACRO IS STM)

• Focal length: 35.60 mm
• F number: 1.85
• Half angle of view: 31.22
• Image height: 21.64 mm
• Lens length: 81.87 mm
• Back focus: 13.49 mm

RF 20mm F/2

• Focal length: 20.50 mm
• F number: 2.06
• Half angle of view: 46.54
• Image height: 21.64 mm
• Lens length: 90.13 mm
• Back focus: 13.50 mm

RF 35mm F/2.8

• Focal length: 35.70 mm
• F number: 2.88
• Half angle of view: 31.22
• Image height: 21.64 mm
• Lens length: 60.00 mm
• Back focus: 13.15 mm

RF 45mm F/2.8

• Focal length: 44.70 mm
• F number: 2.85
• Half angle of view: 25.83
• Image height: 21.64 mm
• Lens length: 62.63 mm
• Back focus: 13.13 mm

RF 35mm F/2

• Focal length: 35.91 mm
• F number: 2.06
• Half angle of view: 31.07
• Image height: 21.64 mm
• Lens length: 50.50 mm
• Back focus: 15.05 mm

RF 16-34mm F/4

• Focal length: 16.48 24.02 33.75 mm
• F number: 4.12
• Half angle of view: 52.70 42.01 32.66
• Image height: 21.64 mm
• Lens length: 117.64 109.16 110.13 mm
• Back focus: 11.50 19.17 29.63 mm

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

• A cooling adapter for the RF mount (R5 overheating?)
• A bunch of macro lenses for the RF mount.
• 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]