Canon Patent: Quad Pixel Autofocus Imaging Sensor

Quad Pixel

Dual Pixel AF was true innovation when first launched by Canon on the EOS 70D. It’s just common sense to assume Canon will develop it further. Welcome Quad Pixel AF.

Here is a Canon patent for a Quad Pixel AF imaging sensor, and it is not the first we spotted. Canon patent application 2020-171060 (Japan) discusses the technology. It’s hard to say when we will see the first commercial Quad Pixel AF sensor. But we know it is coming.

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

Canon Patent: RF 50mm f/1.4 and RF 35mm f/1.4 Lenses For EOS R

Canon Patent

Another Canon patent dealing with lenses for the RF mount, i.e. for Canon’s full frame mirrorless system EOS R.

Canon patent application 2020-181071 (Japan) discusses optical formulas for an RF 50mm F1.4 and an RF 35mm f/1.4 lens. This patent application is particularly interesting since 50mm f/1.4 and 35mm f/1.4 are two very classic lenses for a full frame system.

The patent application seems to reveal a modern and complex optical design with front and rear lenses for optical correction. Moreover, we think it has internal focusing, a small size and a very fast auto-focus. Another two lenses that might go into production.

Example 1Example 2Example 3
Focal length51.5048.4748.49
F value1.451.451.85
Half angle of view22.7924.0524.04
Image height21.6421.6421.64
full length95.19108.8491.98
BF11.4911.3911.48
Example 4Example 5
Focal length48.4933.99
F value1.451.45
Half angle of view24.0432.48
Image height21.6421.64
full length116.56131.16
BF13.2312.05

More Canon patent applications are listed here.

[via asobinet.com]

Canon Patent: RF 80mm f/2.8 Macro 1:1 Lens For EOS R System

Canon Patent

And yet another Canon patent for a lens for the EOS R full frame mirrorless camera system,

Canon patent application 2020-181169A (Japan) discusses optical formulas for an RF 80mm f/2.8 Macro 1:1 lens.

  • Focal length: 80.45 mm
  • F number: 2.90
  • Half angle of view: 15.05
  • Image height: 21.64 mm
  • Lens length: 123.69 mm
  • Back focus: 13.72 mm

Interesting lens I have to say. Let’s hope it goes into production.

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

[via Hi Lows Note]

Canon Patent For A Bunch Of RF Mount f/1.8 Prime Lenses

RF Mount

And yet another Canon patent application dealing with RF mount lenses.

Canon patent application 2020-0326505 (USA) discusses optical formula for a bunch of f/1.8 lenses for the EOS R.

  • 105mm f/1.8
  • 130mm f/1.8
  • 150mm f/1.8

Not unlikely these lenses will hit the market, sooner or later.

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

Canon Patent Shows RF Mount Zoom Lens That Could Be For An APS-C EOS R Camera

Aps-c Eos R

Interesting Canon patent application. Various zoom lenses for the EOS R system are discussed, with one being particularly interesting since it seems to point to an APS-C EOS R.

Canon patent application (2020-170102, Japan) discusses optical formulas for zoom lenses for the Canon EOS R system. The patent literature discusses the following zoom lenses:

Example 1Example 2Example 3
Focal length24.72-67.9024.72-116.4024.72-101.85
F value4.124.04-7.314.29-7.31
Half angle of view41.50-17.3041.80-10.3041.80-11.80
Image height19.69-21.6419.90-21.6419.90-21.64
full length101.50-141.15109.01-159.02107.52-158.03
BF12.50-24.861415-31.0113.48-35.52
Example 4Example 5
Focal length27.72-82.4515.45-67.90
F value3.53-5.883.93-7.31
Half angle of view38.53-14.7042.40-11.37
Image height19.69-21.6412.56-13.65
full length101.50-142.5071.26-113.36
BF14.16-32.5212.40-24.51
Look at example 5

As you can see from the table above, there are 24-70mm, 24-116mm, 24-100mm, 27.80mm, and, listed under “Example 5”, a 15-70mm f/4-7.1 zoom lens with an image height that doesn’t work for a full frame sensor on a mirrorless camera. However, the lens is based on the same design principles as the others, so it might be for an APS-C EOS R camera.

If you have a better understanding of the patent (or of Japanese), spotted by asobinet.com, please help me out on this. Is this really a lens for an EOS R camera with an APS-C sensor??

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

Canon Working On An RF 8-15mm f/4 Fish-eye Zoom Lens, Patent Suggests

Fish-eye

A new Canon patent application suggests the company might have an interesting lens for the EOS R ecosystem up their sleeve.

Hi Lows Note spotted Canon patent application 2020-166234A (Japan), where optical formulas for an RF 8-15mm f/4 fish-eye lens are discussed. The lens seems to be pretty much the mirrorless counterpart to the EF 8-15mm f/4 fish-eye.

  • Zoom ratio: 1.85
  • Focal length: 8.10 12.51 15.01 mm
  • F number: 4.10 4.10 4.10
  • Half angle of view: 90.14 90.45 90.39
  • Image height: 11.50 18.00 21.60 mm
  • Lens length: 123.74 111.21 109.67 mm
  • Back focus: 11.78 20.27 24.66 mm

We think it’s very likely this lens will hit the market, sooner or later. Btw, it’s not the first patent for a fish-eye lens for EOS R.

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