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

Canon Patent
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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
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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
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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
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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:

Canon Working To Make IBIS Units Smaller, Patent Suggests

Ibis Units
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It took Canon a long time to feature IBIS (In Body Image Stabilization) on their cameras. Now they are actively researching how to make it better. The Canon EOS R5 already has the best in its class.

Canon patent application 2020-140104 (Japan, spotted by Canon News) discusses technical aspects related to making an IBIS unit smaller. IBIS units are relatively bulky and take a considerable amount of space inside the camera. A smaller IBIS unit might mean an overall smaller camera.

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

Canon Patent Application For RF 200-800mm f/6-8.5 Lens

Canon Patent Application
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Another Canon patent application for an RF mount lens, that’s a lens for the Canon EOS R full frame mirrorless system.

Hi Lows Note spotted Canon patent application 2020-118816A. The patent application describes the optical formulas for an RF 200-800mm f/6-8.5 lens.

  • Focal length: 199.97 399.99 784.76 mm
  • F number: 6.00 6.80 8.50
  • Half angle of view: 6.17 3.10 1.58
  • Image height: 21.64 21.64 21.64 mm
  • Lens length: 285.44 355.65 385.65 mm
  • Back focus: 22.57 43.72 83.86 mm

Interesting: the patent application also discusses optical formulas for a RF 100-500mm f/4.5-7.1 IS USM lens. We guess it might well refer to to just announced RF 100-500mm f/4.5-7.1L IS.

  • Focal length:101.99 199.92 489.99 mm
  • F number: 4.60 5.20 7.20
  • Half angle of view: 11.98 6.18 2.53
  • Image height: 21.64 21.64 21.64 mm
  • Lens length: 222.94 272.65 312.20 mm
  • Back focus: 19.88 36.44 69.71 mm

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