Another Canon patent application for an RF mount lens, that’s a lens for the Canon EOS R full frame mirrorless system.

Hi Lows Note spotted Canon patent application 2020-118816A. The patent application describes the optical formulas for an RF 200-800mm f/6-8.5 lens.

• Focal length: 199.97 399.99 784.76 mm
• F number: 6.00 6.80 8.50
• Half angle of view: 6.17 3.10 1.58
• Image height: 21.64 21.64 21.64 mm
• Lens length: 285.44 355.65 385.65 mm
• Back focus: 22.57 43.72 83.86 mm

Interesting: the patent application also discusses optical formulas for a RF 100-500mm f/4.5-7.1 IS USM lens. We guess it might well refer to to just announced RF 100-500mm f/4.5-7.1L IS.

• Focal length:101.99 199.92 489.99 mm
• F number: 4.60 5.20 7.20
• Half angle of view: 11.98 6.18 2.53
• Image height: 21.64 21.64 21.64 mm
• Lens length: 222.94 272.65 312.20 mm
• Back focus: 19.88 36.44 69.71 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