Canon Patent: 11mm F2, 13mm F2, 22mm F2, And 30mm F2 Lenses For RF-S Mount

Canon Patent
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Here is a new Canon patent application, for a bunch of fast primes for the RF-S mount.

Canon patent application P2023130885 (Japan, published 9/21/2023) discusses optical formulas for RF-S mount prime lenses:

  • 11mm F2
  • 13mm F2
  • 22mm F2
  • 30mm F2

From the patent literature:

An object of the present invention is to provide a rear focus optical system that is compact and capable of good aberration correction.

BACKGROUND ART

In imaging, it is required to suppress the generation of noise during zooming and focusing. In order to suppress noise during focusing, the rear focus (inner focus) method, in which focusing is performed by moving the lens group closest to the image side than the lens group closest to the object side, is recommended because it provides the best sound isolation effect from the object side lens. suitable.

Rear focus type optical systems are also required to be compact and have good aberration correction. In order to realize such an optical system, it is necessary to appropriately set the lens arrangement and the focal length of each lens.

The present invention provides a rear focus type optical system that is compact and capable of good aberration correction, and an imaging device equipped with the same.

Example 1

  • Focal length: 13.40
  • F value: 2.06
  • Half angle of view: 43.01
  • Image height: 12.50
  • Total length: 77.83
  • Back focus: 12.43

Example 2

  • Focal length: 11.30
  • F value: 2.06
  • Half angle of view: 47.89
  • Image height: 12.50
  • Total length: 77.85
  • Back focus: 12.44

Example 3

  • Focal length: 22.00
  • F value: 2.06
  • Half angle of view: 29.60
  • Image height: 12.50
  • Total length: 72.85
  • Back focus: 12.444

Example 4

  • Focal length: 30.52
  • F value: 2.06
  • Half angle of view: 22.27
  • Image height: 12.50
  • Total length: 75.88
  • Back focus: 14.49

More Canon patents are listed here.

[via asobinet]

TTArtisan 11mm F2.8 Fisheye Lens Announced (Canon RF)

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A new lens for the RF mount, the TTArtisan 11mm F2.8 Fisheye

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/16
  • Fisheye Optical Design
  • Manual Focus Operation
  • Minimum Focusing Distance: 6.7″
  • 7-Blade Diaphragm
  • Built-In Lens Hood

The lens is available at $215 at B&H Photo and Adorama and Amazon.

TTArtisan 11mm f/2.8 Overview

Offering a uniquely wide angle of view, the TTArtisan 11mm f/2.8 is a fisheye lens designed for Canon RF-mount mirrorless cameras. The expansive field of view and distinct fisheye look is characterized by immense depth of field along with strong distortion for creating very striking and dynamic imagery. The wide-angle design is also complemented by a bright f/2.8 maximum aperture, to suit working in available lighting conditions, and the lens’s manual focus design permits working with subjects as close as 6.7″ away.

Ultra-wide prime is designed for full-frame Canon RF-mount mirrorless cameras.

Fisheye design renders an immensely wide angle of view to produce distinct visual appeal characterized by dramatic distortion and a creative depiction of space.

Manual focus design permits smooth, refined control along with a minimum focusing distance of 6.7″.

Built-in petal-shaped lens hood that helps to block stray light from causing lens flare and also offers some physical protection to the front of the lens.

TTArtisan 11mm F/2.8 Fisheye Video-Review (RF Mount)

TTArtisan 11mm F/2.8
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Here is a TTArtisan 11mm F/2.8 Fisheye Video-Review. The RF-mount option is reviewed.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/16
  • Fisheye Optical Design
  • Manual Focus Operation
  • Minimum Focusing Distance: 6.7″
  • 7-Blade Diaphragm
  • Built-In Lens Hood

User Qippy’s Channel on YouTube posted the TTArtisan 11mm F/2.8 Fisheye Video-Review you can watch below. Enjoy.

The is a rather inexpensive lens, you can get it for $215:

America: B&H Photo, Adorama, 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

TTArtisan 11mm f/2.8 Fisheye Overview

Offering a uniquely wide angle of view, the TTArtisan 11mm f/2.8 is a fisheye lens designed for Canon RF-mount mirrorless cameras. The expansive field of view and distinct fisheye look is characterized by immense depth of field along with strong distortion for creating very striking and dynamic imagery. The wide-angle design is also complemented by a bright f/2.8 maximum aperture, to suit working in available lighting conditions, and the lens’s manual focus design permits working with subjects as close as 6.7″ away.

Ultra-wide prime is designed for full-frame Canon RF-mount mirrorless cameras.

Fisheye design renders an immensely wide angle of view to produce distinct visual appeal characterized by dramatic distortion and a creative depiction of space.

Manual focus design permits smooth, refined control along with a minimum focusing distance of 6.7″.

Built-in petal-shaped lens hood that helps to block stray light from causing lens flare and also offers some physical protection to the front of the lens.

Venus Optics Releases Laowa RF 11mm f/4.5 FF RL For Canon EOS R

Laowa RF 11mm
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Another third party lens joins the Canon EOS R party. Venus Optics released the Laowa RF 11mm f/4.5 FF RL lens for the RF mount.

The Laowa RF 11mm f/4.5 FF RL sells at $699 and is available at Venus Optics. Along with the 11mm, they also released the Nikon Z mount version of the Laowa 65mm f/2.8 2x Ultra-Macro APO. There are a lot of interesting Laowa lenses for Canon cameras.

Specifications Laowa 11mm f/4.5 FF RL

Focal Length11mm
Max. Aperturef/4.5
Min. Aperturef/22
Angle of View126°
Format CompatibilityFull Frame
Lens Structure14 elements in 10 groups
Aperture Blades5
Min. Focusing Distance7.4” (19cm)
Max. Magnification0.1x
Filter Thread62mm
Dimensions⌀ 63.5mm x 58mm
Weight254g (8.9 oz.)
MountsLeica M, L mount, Sony FE, Nikon Z, Canon RF

Press release:

Venus Optics announces the add of Canon RF mount for Laowa 11mm f/4.5 FF RL lens
and Nikon Z mount for Laowa 65mm f/2.8 2x Ultra-Macro APO

(FF = Full Frame, RL = Rectilinear)

Anhui China, 19 Feb, 2021 – Venus Optics, the manufacturer specialized in making unique camera lenses, now offers more variants to 2 popular Laowa lenses. Added Canon RF mount for the Laowa 11mm f/4.5 FF RL lens (Full Frame) and Nikon Z mount for Laowa 65mm f/2.8 2x Ultra-Macro APO (APS-C). Offering Canon Full-frame (R, RP, R5 & R6) users an exceptional ultra-wide experience and the high magnification power on Nikon APS-C body (Z50).

Laowa 11mm f/4.5 FF RL

Laowa 11mm F4.5 FF RL is an extremely compact rectilinear(RL) wide-angle lens for full-frame (FF) mirrorless cameras. The remarkable 126° angle of view with 19cm minimum focus distance can be found in this 6.3cm(2.5 inches) long and 254g(8.9oz) lens. It allows you to capture the stunning landscape, precious travel moments and beautiful cityscape without any burden. The lens also includes 2 aspherical elements and 3 extra-low dispersion elements to guarantee the sharpness, suppress chromatic aberrations and distortion to the minimum.

Conveniently a 62mm filter can be screwed onto the lens directly, or a 100mm-wide filters can be used. The 5-bladed aperture able to create a clean and appealing stunning 10-point sunstars.

Laowa 11mm f/4.5 FF RL is now available in Leica M, Sony FE, Nikon Z, Canon RF and L mount. MSRP in US is US$799(Leica M) and US$699(other mounts).

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Irix 11mm f/4 Blackstone and Firefly Lenses Discounted Up To $100 (limited time)

Irix 11mm F/4
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Until April 30, 2020, B&H Photo has discounts up to $100 on Irix 11mm f/4 Blackstone and Irix 11mm f/4 Firefly lenses (Canon mount).

Click here to see a list of all discounted Irix 11mm f/4 Blackstone and Irix 11mm f/4 Firefly lenses.

Irix 11mm f/4 Blackstone key features:

  • Canon EF-Mount/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • Three Aspherical Elements
  • Two ED and Four HR Elements

More hand-picked deals are listed here.

Today’s Gold Box and one day only deals at Amazon US, Amazon DE, Amazon UK, B&H Photo, eBay, Adorama.

Refurbished lenses and DSLRs at Canon Store (best deals might be found here)

Save $10 on Luminar 4 and/or Aurora HDR 2019 using our code “WATCH” at checkout.

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Irix Cine 11mm T4.3 Lens For Canon EF (and others) Announced

Irix Cine 11mm
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Irix announced the Irix Cine 11mm T4.3 lens.

The new Irix Cine 11mm T4.3 will be offered in following lens mounts: Canon EF, Sony E, MFT and Arri PL. Price will be announced soon.

  • irix Cine 11mm
  • irix Cine 11mm
  • irix Cine 11mm

Press release:

Irix Cine 11mm T4.3
into the art of cinematography

IRIX, known for high mechanical and optical quality, pleasantly presents the 11mm T4.3 – the second full frame lens from it’s new cinematography line. Enjoy the new perspective of super panoramic film shots made with Irix Cine lens!

Irix 11mm T4.3 is the second unique lens from the new Cine line. Its extremely short focal length, rectilinear image projection and the large image circle of 43.3mm (covering the full frame format) make it one of the most outstanding cine lenses on the market. Depending on the diagonal of the sensor, the lens can provide a moderate wide angle of view for classic wide-angle shots or super-panoramic 123 degree viewing angle in a 2.39:1 widescreen format. Irix 11mm T4.3 thanks to its unique parameters, provides perspective not available in film optics, thus releasing creativity in creating dynamic shots.SAR

The same, but different optics
The lens optical system is based on the new optical formula, developed especially for cinematic purpose. It consists of 16 optical elements, which four are made with high refractive index (HR) glass, three other have aspherical surfaces and last two are made with low-dispersion glass (ED). The use of large front lens and other special glass elements provides crisp cinematic shots in a resolution up to 8K while keeping the focus “breathing” effect at the lowest level. The lens offers large maximum T number of 4.3 which can be reduced to T22, thanks to rounded shape of iris blades.

Functional and highly innovative
When designing the lens mechanical system of 11mm T4.3, we used newly developed technical solutions that have been successfully implemented in the Irix Cine 150mm T3.0 lens. The new Multi Start Thread focusing mechanism allows quiet and precise focusing even under adverse weather conditions such as rain, humidity or extreme temperatures. The focusing geared ring rotates 180 degrees and depending on the lens version, has focusing scale with metric or imperial units.

Thanks to the another innovative solution like adaptive ring, the Irix Cine 11mm T4.3 ensures great ergonomics of operation both by hand and with follow focus mechanism. Moreover, despite of the very short optical system layout, geared rings of focus and aperture were placed at the same height as in other Irix Cine lenses – all for better ergonomics and more intuitive use.

The exceptional functionality are a distinctive feature of all Irix products. The same applies to the Irix Cine 11mm T4.3, whose extremely compact design (weights 1,1 kg) has been also equipped with an innovative Magnetic Mount System for accessories. The MMS system allows quick and easy attachment of variety dedicated accessories. The lens hood included in the kit with the lens is the first element of the MMS system. The system will be expanded with further accessories in the future.

Prepared for all weather conditions
The ultra wide field of view of the Irix 11mm T4.3 means that its natural work environment is outdoor. It’s durable magnesium housing and numerous rubber seals guarantee the safety of both the optical system and the camera sensor in an every weather conditions.

Designed to work in accordance with film industry standards
The 11mm T4.3 is another lens of the Irix Cine line that proves that newest technical solutions can perfectly harmonize with well-established film industry standards. The lens has a front flange with a diameter of 95mm and geared rings in the Mod 0.8 standard, which ensures its compatibility with most cine gear accessories. Attention to maintaining the standard also applies to the family of Irix cine lenses whose geared rings are in the same position and have unified rotation angle.

Irix Cinematic
The new line of Irix Cine Lenses is created in close cooperation with professional filmmakers; their ideas and suggestions were an important factor in the design process. The designers earlier experience in the field of photography led us to create new and better solutions for the Irix Cine products.

Available camera mounts
The new Irix Cine 11mm T4.3 will be offered in following lens mounts: Canon EF, Sony E, MFT and Arri PL.

Price and availability
The price and availability of the Irix Cine 11mm T4.3 lens will be announced shortly.

[via 4/3 Rumors]