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

Venus Optics Announced Two Laowa Cinema Lenses (100mm Macro & 65mm Macro)

Laowa

Venus Optics announced two new Laowa lenses for Cinema applications, Laowa 65mm T2.9 2X Macro APO Cine (Super 35)
Laowa 100mm T2.9 2X Ultra Macro APO Cine (Full Frame)
.

Learn more with the video below.

Venus Optics press release:

Anhui China, 6 October, 2022 – Venus Optics, the camera lens manufacturer that has been endeavouring to invent unique lenses, is now releasing 2 new cine macro lenses: 

1) Laowa 65mm T2.9 2X Macro APO Cine (Super 35) – Fujifilm X / Sony E/ / Nikon Z / Canon EF-M

2) Laowa 100mm T2.9 2X Ultra Macro APO Cine (Full Frame) – PL / Sony E / Canon EF / Canon RF / L mount

The 2 lenses offer up to an exceptional 2X magnification which can barely be found on the market. Providing cinematographers higher flexibility in shooting subjects of different sizes. With an APO design, the lenses render quality images without chromatic aberration. Greatly reduce the effort for post-editing, especially for macro shots. Both the 65mm and the 100mm have a T2.9 large aperture for not just creating a shallower depth of field, but also good for low light situations. Make ready for professional use, the focusing ring and the step-less aperture ring are all equipped with industrial standard 0.8 mod gear. A 77mm filter thread is on both lenses so the cinematographers can choose between screw-in filters or using matte boxes. The weight of the two lenses is respectively 550g and 957g for 65mm and 100mm. With the competitive price of USD599 for 65mm and USD999 for 100mm, these lenses would be perfect for all sorts of commercials or cine productions.

The 2:1 magnification is rarely found in the market. It allows cinematographers to capture rich macro details of the subject. From capturing wildlife, product closeup or anything that needs an immersive perspective, both lenses would offer stunning image quality. Being able to focus to infinity, the 65mm and 100mm can also use for portrait shots. Minimum focusing distance of 17cm (6.69″) and 24.7cm (9.7″) respectively for 65mm and 100mm when shooting 2X macro.

The 65mm and 100mm also inherited the excellent APO design as most of the Laowa macro lenses do, effectively eliminate both lateral and longitudinal chromatic aberrations in the frame. Greatly reduce the amount of effort in post-editing.

Both lenses deliver stunning details and contrast from centre to corner even when using a wide-open aperture. These two professional prime lenses are built to deliver exceptional resolution and sharpness.

Specification

Laowa 65mm T2.9 2X Macro APO CineLaowa 100mm T2.9 2X Macro APO Cine
Focal Length65mm100mm
Angle of View24.4°26.1°
T Stop RangeT2.9-22T2.9-22
Format CompatibilityS35Full Frame
Lens Structure14 elements in 10 groups12 elements in 10 groups
Aperture Blades   913
Min. Focusing Distance17 cm24.7cm
Min. Working Distance8 cm7.1cm
Max. Magnification2X2X
Focus Throw249°220°
Filter Thread77mm77mm
Dimensions84.8 x 103mm85.6 x 139mm
Weight550g957g
MountsCanon EF-M / Fujifilm X/ Sony E/ Nikon ZArri PL / Sony E / Canon EF / Canon R /L mount

Canon RF 100mm f/2.8L IS Macro Review (great lens with some added weirdness)

RF 100mm F/2.8L Macro IS Review

Here is a new Canon RF 100mm f/2.8L IS Macro Review. The Canon RF 100mm f/2.8L IS Macro is a lens getting many positive reviews. A rather interesting lens for any EOS R owner.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • 1.4x Magnification with Autofocus
  • Aperture Range: f/2.8 to f/32
  • Minimum Focusing Distance: 10.2″
  • Super Spectra Coating
  • Smooth and Quiet Auto Focus
  • Optical Image Stabilization; Hybrid IS
  • Control Ring for Direct Setting Changes
  • 9-Blade Diaphragm
  • Weather-Sealed Construction

The experts at Optical Limits posted their Canon RF 100mm f/2.8L IS Macro review. From their conclusion:

The Canon RF 100mm f/2.8 L USM macro IS is a great lens with some added weirdness. Optically, it is capable of delivering very sharp images straight from f/2.8 – just as you would expect from a moderately fast macro lens. Image distortions are basically negligible even without correction. Lateral CAs are on the low side as well and can be easily corrected anyway. This can’t be said of the raw vignetting which is comparatively high at f/2.8 so auto-correction should remain activated. The quality of the bokeh is generally pleasing with a smooth background blur and nicely rendered highlights. The foreground blur isn’t ideally rendered but that’s usually of lesser concern. Bokeh lovers may also like the SA feature on the lens but, to be honest, for most of us, it’ll remain an oddity that you have to pay for without using it. Maybe video makers can appreciate it more than photographers. That being said – the massive focus-breathing doesn’t help with videos. A bit concerning are the RSAs when stopping down – focus shifts aren’t helpful at very close focus distances. It’s something to keep in mind when shooting at least.

More coverage of this outstanding lens is listed here.

Preorders in USA are open at $1,399: B&H Photo | Adorama. If you are based in UK we recommend Park Cameras. More worldwide preorders:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

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Canon RF 100mm f/2.8L IS Macro Review (DPReview TV)

RF 100mm F/2.8L Macro IS Review

DPReview TV’s Chris and Jordan review the Canon RF 100mm f/2.8L IS Macro lens. This a very interesting lens, with lots of positive reviews.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • 1.4x Magnification with Autofocus
  • Aperture Range: f/2.8 to f/32
  • Minimum Focusing Distance: 10.2″
  • Super Spectra Coating
  • Smooth and Quiet Auto Focus
  • Optical Image Stabilization; Hybrid IS
  • Control Ring for Direct Setting Changes
  • 9-Blade Diaphragm
  • Weather-Sealed Construction

Chris and Jordan say:

Over a year after it was announced, Chris and Jordan had the chance to play with the Canon RF 100mm F2.8 L IS Macro! Alongside the expected improvements in autofocus speed and optical performance, this lens feature Spherical Aberration Correction, which allows you to change the look of out-of-focus areas. Is this new lens worth the premium price?

More coverage of this outstanding lens is listed here.

Preorders in USA are open at $1,399: B&H Photo | Adorama. If you are based in UK we recommend Park Cameras. More worldwide preorders:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

Click here to open the rest of the article

Today Only: Tokina atx-i 100mm F/2.8 FF MACRO Lens (Canon) – $349 (reg. $429)

Tokina Atx-i 100mm F/2.8 FF MACRO

Only for today (3/3/2022) Adorama has a19% discount on the Tokina atx-i 100mm F/2.8 FF MACRO Lens (Canon EF mount).

At a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/32
  • Multilayered Coating
  • 1:1 Magnification, 11.8″ Min. Focus
  • Autofocus and One-Touch Focus Clutch MF
  • Focus Range Limiter Switch for Macro Use
  • Nine-Blade Diaphragm

Get the Tokina atx-i 100mm F/2.8 FF MACRO Lens for Canon EF on sale at $349. Compare at $429.

More selected deals:

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Canon Patent: RF 100mm f/2 Macro Lens (EOS R system)

Canon Patent

And yet another Canon patent application for an RF mount lens. A new macro lens might be in the works.

Canon patent application 2022-16822 discusses optical formulas for a RF 100mm f/2 Macro lens.

PROBLEM TO BE SOLVED: To provide an optical system which is small in size, suppresses aberration fluctuation due to focusing, and can obtain high optical performance over an entire object distance from infinity to a close distance, and an image pickup apparatus having the same.

A macro lens whose main purpose is to shoot a short-range object is configured to be capable of shooting from an infinite object having a shooting magnification of 0 times to a short-range object having a shooting magnification of about 1x. desirable. Further, the macro lens is required to have low aberration fluctuation and high optical performance over the entire object distance at the time of focusing, and the focus lens group is small and lightweight in order to perform focusing at high speed. When the inner focus method and the floating method are used, it becomes easy to perform focusing at high speed, reduce aberration fluctuations due to focusing, and obtain high optical performance over all object distances from infinity to close range.

Example 1

  • Focal length: 97.00
  • F value: 2.06
  • Half angle of view: 12.57
  • Image height: 21.64
  • Overall length: 159.46
  • Back focus: 19.70
  • Shooting magnification: -1.0

The patent application was spotted by asobinet.com. More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these: