Category: Canon Patents

New Canon Patent for RF 30-600mm f/4-8 Zoom Lens

A new Canon patent application was spotted by asobinet.com. According to the details the product is a Canon RF 30-600mm f/4-8 lens. As you can see this will be another long zoom .

If goes in mass production, this lens will be identical to the  Sigma 60-600mm f/4.5-6.3. Let’s see if we see it in production. Till then see below the patent details for the RF 30-600mm f/4-8 Zoom Lens.

RF 30-600mm f/4-8 Zoom Lens Details

  • Focal length: 30.50-585.00
  • F value: 4.00-8.00
  • Half angle of view: 35.35-2.12
  • Image height: 21.64
  • Overall length: 309.33-489.09
  • Back focus: 29.33-102.45

Canon Patent : RF 200-500mm f/4L IS USM and RF 300-800mm f/8 IS USM Lenses

Canon is planning to announce the new super-telephoto lenses in 2022. In addition to the previously reported , , Canon filed a new patent for  RF 200-500mm f/4L IS USM and RF 300-800mm f/8 IS USM Lenses.

Canon patent application 2022-26392 (Japan) discusses optical formulas for 200-500mm f/4 and 300-800mm f/8 lenses. Check out the details below :

Continue reading “Canon Patent : RF 200-500mm f/4L IS USM and RF 300-800mm f/8 IS USM Lenses”

Canon Patent for 400mm f/4 DO IS Extender 1.4x and 600mm f/4 IS Extender

Canon filed a new patent for 400mm f/4 DO IS Extender 1.4x and 600mm f/4 IS Extender. Canon patent application 2022-22771 discusses optical formulas for RF mount mirrorless cameras. First of all the lenses ;

  • 400mm f/4 DO IS Extender 1.4x
  • 600mm f/4 IS Extender 1.4x

See the details of the 400mm f/4 DO IS Extender 1.4x and 600mm f/4 IS Extender below. Continue reading “Canon Patent for 400mm f/4 DO IS Extender 1.4x and 600mm f/4 IS Extender”

New Canon Patent for 200-500mm f/4 and 300-800mm f/8 Lenses

Here is a new Canon patent refers to two super zoom lenses for the RF mount cameras.

Canon patent application 2022/0035144 (USA) discusses optical formulas for a 200-500mm f/4 lens and a 300-800mm f/8 lens. Other lenses discussed in the patent literature are 200-400mm f/4 and 150mm f/5 – 600mm f/6.5. These too might be for the RF mount.

See the details of the New Canon Patent for 200-500mm f/4 and 300-800mm f/8 Lenses below.

Continue reading “New Canon Patent for 200-500mm f/4 and 300-800mm f/8 Lenses”

Canon APS-C RF Mount Lens Patent

We have a new Canon patent for APS-c sensor mirrorless cameras. This Canon APS-C RF Mount Lens Patent is RF-S 16-55mm F2.8 Lens. This could also refer to the upcoming RF Mount based APS-C Camera (Canon EOS R7).

Canon RF-S 16-55mm F2.8 Lens

  • Focal length: 16.50-53.81
  • F value: 2.90
  • Half angle of view: 42.26-13.98
  • Image height: 14.00
  • Overall length: 103.55-129.89
  • Back focus: 14.18-10.01

Canon RF 135mm f/1.4L DS, RF 50mm f/1.4L DS, RF 24mm f/1.4L DS Lens Patent

Canon Japan has just filed new patent for large aperture RF mount prime lenses. These lenses are RF 135mm f/1.4L USM DS, RF 50mm f/1.4L USM DS, RF 24mm f/1.4L USM DS.

This new Canon patent showcases some RF mount prime lenses that utilize Defocus Smoothing, which first appeared in the RF 85mm f/1.2L USM DS. Continue reading “Canon RF 135mm f/1.4L DS, RF 50mm f/1.4L DS, RF 24mm f/1.4L DS Lens Patent”

Canon RF Patents: 18mm f/1.8, 20mm f/1.4, 21mm f/1.8, 24mm f/1.8, 28mm f/1.8 Lenses

Here is another Canon patent application for a bunch of fast prime lenses for the RF mount. Canon full frame mirrorless system is growing and we see quite more patents for this mount.

Keep in mind that the mere existence of a patent application doesn’t necessarily entail the described item will ever hit the market. So we might see changes when it comes to mass production.

Canon patent application 2021-193406 (Japan) aims to

[…] provide an optical system having high optical performance and less aberration fluctuation due to focusing. 

and discusses optical formulas for these lenses: Continue reading “Canon RF Patents: 18mm f/1.8, 20mm f/1.4, 21mm f/1.8, 24mm f/1.8, 28mm f/1.8 Lenses”

New Patent: Canon RF 17-85mm f/4-5.6 Lens

New Canon patent surfaced on the web. This time Canon filed a new lens patent for the RF 17-85mm f/4-5.6 Lens. You might guess from the RF designation this will be designed for Canon full-frame mirrorless cameras.  See the patent details below.

[Publication number] JP 2021-182053(P2021-182053A)
[Publication date] November 24, 2021
[Patent application title] Optical system and imaging device

Continue reading “New Patent: Canon RF 17-85mm f/4-5.6 Lens”

New Canon Patents : RF 28-70mm f/2.8 & RF 28-60mm f/4 Lenses

Here are two new Canon patent applications surfaced online. The company has filed two new RF lens patents for the 28-70mm f/2.8and RF 28-60mm f/4 Lenses, which are designed for Canon EOS R system.

[Publication number] JP 2021-179550(P2021-179550A)
[Publication date] November 18, 2021
[Patent application title] Optical system and imaging device

Take a look at the new Canon patents for RF 28-70mm f/2.8 & RF 28-60mm f/4 lenses. Continue reading “New Canon Patents : RF 28-70mm f/2.8 & RF 28-60mm f/4 Lenses”

Canon RF-S 18-45mm f/4.5-6.3 Lens Patent

There is a new Canon patent filed and it is related to the RF-S 18-45mm f/4.5-6.3 Lens. As you might guess this lens will be designed for APS-C mirrorless cameras. See the patent details below.

[Publication number] JP 2021-162822 (P2021-162822A)
[Publication date] October 11, 2021
[Patent application title] Optical system and imaging device

Embodiment 1

  • Focal length: 18.53-43.65
  • F value: 4.54-6.50
  • Half angle of view: 33.78-17.38
  • Image height: 12.40-13.66
  • Overall length: 92.00-83.05
  • Back focus: 30.20-51.20

Embodiment 2

  • Focal length: 20.01-43.64
  • F value: 4.60-6.50
  • Half angle of view: 31.79-17.38
  • Image height: 12.40-13.66
  • Overall length: 90.65-80.61
  • Back focus: 32.94-50.55

Via: Asobinet