Canon Patent: Macro Lenses For EOS R System (85mm, 95mm, 100mm, all f/2.8)

And now let’s go for one more Canon patent for an RF mount lens.

Canon patent application 2020-91334A (spotted by Hi Lows Note) discusses optical formulas for three macro lens for the RF mount.

RF 85mm F2.8 1:1 MACRO

• Focal length: 84.92 mm
• F number: 2.92
• Half angle of view: 14.29
• Image height: 21.64 mm
• Lens length: 120.23 mm
• Back focus: 10.60 mm

RF 95mm F2.8 1:1 MACRO

• Focal length: 94.82 mm
• F number: 2.92
• Half angle of view: 12.85
• Image height: 21.64 mm
• Lens length: 124.00 mm
• Back focus: 14.11 mm

RF 100mm F2.8 1:1 MACRO

• Focal length: 99.75 mm
• F number: 2.92
• Half angle of view: 12.24
• Image height: 21.64 mm
• Lens length: 169.97 mm
• Back focus: 14.00 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