Canon Patent: RF 70-300mm f/3.5-5.6 & RF 100-500mm f/5.6-6.4 Lenses (EOS R)

Here is a new Canon patent application, and again it is about lenses for the RF mount.

Canon patent application 2020-64176 discusses optical formulas for an RF 70-300mm f/3.5-5.6 and an RF 100-500mm f/5.6-6.4 lens, both are for the EOS R full frame mirrorless system.

RF 70-300mm f/3.5-5.6

• Zoom ration: 3.97
• Focal length: 72.86 133.96 289.00 mm
• F number: 3.75 4.66 5.83
• Half angle ov view: 16.54 9.17 4.28
• Image height: 21.64 21.64 21.64 mm
• Lens length: 162.01 202.44 237.12 mm
• Back focus: 13.80 31.02 57.79 mm

RF 100-500mm f/5.6-6.4

• Zoom ration: 4.75
• Focal length: 102.00 220.00 485.00 mm
• F number: 5.69 6.14 6.43
• Half angle of view: 11.98 5.62 2.55
• Image height: 21.64 21.64 21.64 mm
• Lens length: 213.16 266.00 293.16 mm
• Bacl focus: 11.09 26.50 42.04 mm

This might be a patent that gets into production sooner or later. 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