Canon Patent: RF 135mm f/1.8L IS USM Lens For The EOS R Camera System

Canon Patent

And yet another Canon patent application for an RF-mount lens.

Canon patent application 2023099390 (Japan, published 7/13/2023) discusses optical formulas for what appears to be an RF 135mm f/1.8L IS USM lens.

From the patent literature:

Optical System and Imaging Device Having the Same

An object of the present invention is to provide an optical system equipped with an anti-vibration group that achieves both miniaturization and high anti-vibration performance, and an imaging apparatus having the optical system.
Telephoto lenses equipped with anti-vibration groups are required to achieve both miniaturization and high anti-vibration performance . In the telephoto lens equipped with the anti-vibration group of Patent Document 1, the anti-vibration performance is ensured by arranging the anti-vibration group at a position slightly away from the image plane position toward the object side, but it is difficult to reduce the size.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide an optical system equipped with a vibration reduction group that achieves both miniaturization and high vibration reduction performance, and an imaging apparatus having the optical system.

Example:

  • Focal length: 130.98
  • F-value: 1.85
  • Half angle of view: 9.38
  • Image height: 21.64
  • Total length: 147.99
  • Back focus: 17.45

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

[via asobinet]

Canon Patent: 100mm F1.8 IS & 150mm F1.8 IS Lenses

Canon Patent

Here we have a new Canon patent, two fast primes for the EOS R system.

Canon patent application 2023009759 (Japan, published 1/20/2023) discusses optical formulas for two fast prime lenses, both for the full frame RF mount:

  • 100mm f1.8 IS
  • 150mm f1.8 IS

From the patent literature:

An object of the present invention is to provide an optical system and an imaging apparatus having the optical system that can reduce the weight of a focusing group.

Description of the Related Art

Conventionally, a telephoto type imaging optical system (telephoto lens) having a long focal length is known. A long focal length is, for example, a focal length that is longer than the size of the effective imaging range. In general, telephoto lenses become larger and heavier as their focal lengths become longer. In addition, among various types of aberration, variations in axial chromatic aberration and chromatic aberration of magnification occur particularly during focusing.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide an image pickup optical system and an image pickup apparatus having the same, which can reduce the weight of the focusing group.

Example 1

  • Focal length: 85.40
  • F-value: 1.85
  • Half angle of view: 14.22
  • Image height: 21.64
  • Overall length: 109.49
  • Back focus: 13.39

Example 2

  • Focal Length: 101.78
  • F-value: 1.85
  • Half angle of view: 12.00
  • Image height: 21.64
  • Overall length: 123.44
  • Back focus: 13.39

Example 3

  • Focal length: 131.00
  • F-value: 1.85
  • Half angle of view: 9.38
  • Image height: 21.64
  • Total length: 146.99
  • Back focus: 13.64

Example 4

  • Focal length: 148.00
  • F-value: 1.85
  • Half angle of view: 8.32
  • Image height: 21.64
  • Overall length: 159.49
  • Back focus: 14.69

The Canon RF 135mm F1.8L USM Starts Shipping on January 26, 2023

Canon RF 135mm F/1.8L

Canon announced the availability of the Canon RF 135mm F1.8L USM lens.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.8 to f/22
  • Nano USM AF System
  • Optical Image Stabilizer
  • Ultra-Low Dispersion Elements
  • Air Sphere Coating
  • Lens Function Buttons and Control Ring
  • Rounded 9-Blade Diaphragm

The Canon RF 135mm F1.8L USM will start shipping (in Japan) on January 26, 2023. We can assume the date is significant for other geographical regions too.

Canon RF 135mm f/1.8L IS world wide preorders:

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

Click here to open the rest of the article

Canon RF 135mm f/1.8L IS Hands-on Review

Canon RF 135mm F/1.8L

Here is a Canon RF 135mm f/1.8L IS hands-on review. The Canon RF 135mm f/1.8L IS was announced last week along with the Canon EOS R6 Mark II.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.8 to f/22
  • Nano USM AF System
  • Optical Image Stabilizer
  • Ultra-Low Dispersion Elements
  • Air Sphere Coating
  • Lens Function Buttons and Control Ring
  • Rounded 9-Blade Diaphragm

DPReview posted their Canon RF 135mm f/1.8L IS hands-on review (using a pre-production model). They also published a sample photos gallery. An excerpt:

[the] field of view is great for medium-distance photographs and its maximum aperture allows photojournalists and sports photographers alike to isolate their subject matter more so than something like a 70–200mm F2.8 lens could. It’s F1.8 aperture also helps in low-light environments, such as dimly-lit basketball courts, hockey arenas and the like, where you otherwise have to crank the ISO up to noisy levels.

Canon RF 135mm f/1.8L IS world wide preorders:

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

Here is a short introduction to the lens:

Click here to open the rest of the article

Leaked: US Pricing For The Upcoming Canon EOS R6 Mark II And Other Gear

Eos R6 Mark Iii Nab 2023 Canon Eos R5 Mark Ii Canon Eos R8 CP+ 2024 Mark Ii Canon EOS Rf 24-50mm R6 Mark Ii Rf Mount Eos R6 Mark Ii Rf 300mm Rf 35mm Canon Eos R100 Rf 24mm F/1.8 Rf-s Canon Eos R7 Eos R100 Canon High Resolution Eos R R10 Eos C5 Canon Canon Eos R1 Eos R5c Canon Rf 16mm Rf 35mm F/1.2L EF Lenses Tilt-shift Lenses Rumor

The US$ prices for the upcoming Canon EOS R6 Mark II and more gear that we expect to get released, leaked ahead of the official announcement.

Here are the US$ prices:

  • EOS R6 Mark II Body: $2499
  • EOS R6 Mark II RF24-105mm IS USM Lens Kit: $3599
  • EOS R6 Mark II RF24-105mm IS STM Lens Kit: $2799
  • EOS R6 Mark II Body with Stop Motion Animation Firmware: $2599
  • RF135mm F1.8 L IS USM: $2099
  • SPEEDLITE EL-5: $399

The EOS R6 Mark II already has a rumored specifications list, that is.

  • 24mp Full-frame CMOS Sensor
  • Dual Pixel RAW / RAW burst
  • Dual Pixel CMOS AF
  • In-body stabilization
  • Digital Tele-Converter
  • 12fps Mechanical
  • Hybrid Auto
  • 4K 30p (no crop)
  • 4K 60p (cropped)
  • Canon Log 3/HDR PQ
  • Cloud RAW processing
  • RF/RF-S Lenses
  • SD/SDHC dual card slot
  • similar form factor as the EOS R6

At this point, with the prices already leaked, the announcement might be a matter of days.

Stay tuned.

[via asobinet]

Canon EOS R6 Mark II and RF 135mm f/1.8L IS Coming In November 2022?

Eos R6 Mark Iii Nab 2023 Canon Eos R5 Mark Ii Canon Eos R8 CP+ 2024 Mark Ii Canon EOS Rf 24-50mm R6 Mark Ii Rf Mount Eos R6 Mark Ii Rf 300mm Rf 35mm Canon Eos R100 Rf 24mm F/1.8 Rf-s Canon Eos R7 Eos R100 Canon High Resolution Eos R R10 Eos C5 Canon Canon Eos R1 Eos R5c Canon Rf 16mm Rf 35mm F/1.2L EF Lenses Tilt-shift Lenses Rumor

A new rumor about the recently leaked Canon EOS R6 Mark II surfaced.

The source of the rumor suggests the Canon EOS R6 Mark II might be announced along with the very long rumored Canon RF 135mm f/1.8L IS lens. The latter is really rumored since a long time (first in 2019).

The EOS R6 Mark II already has a rumored specifications list, that is.

  • 24mp Full-frame CMOS Sensor
  • Dual Pixel RAW / RAW burst
  • Dual Pixel CMOS AF
  • In-body stabilization
  • Digital Tele-Converter
  • 12fps Mechanical
  • Hybrid Auto
  • 4K 30p (no crop)
  • 4K 60p (cropped)
  • Canon Log 3/HDR PQ
  • Cloud RAW processing
  • RF/RF-S Lenses
  • SD/SDHC dual card slot
  • similar form factor as the EOS R6

We are rather confident about the EOS R6 Mark II, and less about the RF 135mm f/1.8. Time will tell.

All Canon rumors are listed here. Stay tuned…

[via asobinet]