Canon Patent: Apodization Filter For EF Lenses

Canon Patent

Canon patent application 2019-0219789 describes formulas and technology about how to apply an apodization filter to EF mount lenses.

The following lenses are discussed in the patent application:

  • Canon EF 50mm 1.4
  • Canon EF 24mm 1.4
  • Canon EF 35mm 1.4
  • Canon EF 135mm 2.0

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

Canon Patent Describes How To Feature IBIS (In Body Image Stabilisation) On A DSLR

Canon Patent

Canon patent application US20190215454 describes how to implement IBIS (In Body Image Stabilisation) in a DSLR. We saw other Canon patent applications dealing with IBIS but this is the first time it is related to a DSLR

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

Canon Patent For A Lens Cap That Might Be Pretty Difficult To Lose

Canon Patent

Canon patent application 2019-113645 describes a design for a lens cap that might once for all solve the issue with lost lens caps.

The lens cap described in the Canon patent opens (and closes) without being removed form the lens. There is more: the lens cap is a lens cap when closed and becomes a lens hood when opened. Pretty smart.

The present invention works as a lens hood function at the time of shooting and as a lens protection function at the time of non-shooting, thus eliminating the need for lens cap attachment / removal and barrier opening / closing operations.

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

This Canon Patent Describes Canon’s Prototype 100-400mm Miniature Concept Camera

Canon Patent

Back in February Canon showcased various concept cameras at CP+ 2019.

One of these cameras, the IVY REC, can now be funded on Indiegogo. Another of those concept cameras is a miniature camera with a 100-400mm telephoto soon (image on top).

Canon patent application 2019-0208134 describes optical formulas and technology of the 100-400mm concept camera. Interesting fact: the lens itself appears to be removable. This could mean Canon will make more focal lengths to fit on this diminutive camera.

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

Canon Working On Lighter and Smaller APS-C Kit Lenses, Canon Patent

Canon Patent

Canon patent application 2019-109266 (Japan) discusses optical formulas for an 18-55mm and a 15-45mm lens for APS-C DSLRs.

  • Focal length 18.55 34.00 53.35 
  • F number 3.55 4.60 5.85 field 
  • Angle 36.36 21.89 14.36 
  • Image height 13.66 13.66 13.66 
  • Lens total length 97.50 113.37 129.36 
  • BF 35.49 47.49 61.37 
  • Focal length 15.45 33.30 43.65 
  • F-number 3.55 5.24 5.85 17.38 
  • Image height 13.66 13.66 13.66 
  • Lens total length 93.50 114.50 131.22 
  • BF 35.50 55.37 61.61 

The patent application also describes ways and methods to make those lenses smaller and lighter. For sure a welcome feature.

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