Canon Patent For 20mm f/1.4 and 12-24mm f/4.3-5.6 Lenses For EF Mount

Hi Lows Note spotted a Canon patent application (2019-128526, Japan) describing optical formulas for a 20mm f/1.4 and a 12-24mm f/4.3-5.6 lens, both for the Canon EF mount.

20mm f/1.4 lens:

• Focal length: 20.50 mm
• FNo.: 1.44
• ω: 46.54
• Image height: 21.64 mm
• Lens length: 134.70 mm
• Back focus: 36.81 mm

12-24mm f/4.3-5.6 lens:

• Focal length: 12.40 – 18.00 – 23.64 mm
• FNo.: 4.35 – 4.96 – 5.60
• ω: 60.18 – 50.25 – 42.47
• Image height: 21.64 mm
• Lens length: 142.18 – 132.82 – 131.14 mm
• Back focus: 36.14 – 44.23 – 52.29 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