Unlikely Rumor: RF 70-300mm f/2-4L IS And RF-S 33mm f/1L Lenses To Come

Nab 2023 Canon Eos R5 Mark Ii Canon Eos R8 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 surfaced, suggesting Canon might announce two lenses: an RF 70-300mm f/2-4L IS And RF-S 33mm f/1L.

We do not think the rumor is reliable. f/2-4 and f/1 (for APS-C sensors) sound very unlikely to us. The source claims:

  • Canon RF-S 33mm f/1L USM lens
  • Canon RF 70-300mm f/2-4L IS USM: 1.6kg zoom lens that still has a large aperture of f/2.4 at 150mm. The image quality at 300mm should be equal to or even better than the already discontinued Canon EF 300mm f / 4L IS USM lens.

According to the source, the RF-S 33mm lens is supported by an already spotted Canon patent application. We do not think this means anything.

Stay tuned…

[via PR]

Canon Patent: Focal Reducer For Mirrorless Camera With APS-C Sensor

Canon Patent

Well that’s a heck of a Canon patent application. A focal reducer that gives some exciting focal length and apertures on APS-C cameras

Spotted by Hi Lows Note, Canon patent application 2021-167921 (Japan) discusses optical formulas for a focal reducer that could transform a 50mm f/1.4 lens for full-frame cameras into a 33mm f/0.94 lens for APS-C sensor cameras. Not bad, eh? Hopefully Canon will release this thing for the EOS M system.

Master lens

  • Focal length (mm): 51.46
  • F number: 1.45
  • Half angle of view (degree): 22.80
  • Image height (mm): 21.64
  • Lens length (mm): 94.41
  • Back focus (mm): 39.81

With embodiment 4

  • Focal length (mm): 33.45
  • F number: 0.94
  • Half angle of view (degree): 22.42
  • Image height (mm): 13.80
  • Lens length (mm): 91.91
  • Back focus (mm): 9.73

Canon Patent: 22mm, 24mm, 33mm, 35mm, all f/1.4, For The RF Mount

Canon Patent

And here is a new Canon patent application for lenses for the RF mount: 22mm, 24mm, 33mm, 35mm, and all are f/1.4.

Canon patent application 2021-113905A (spotted by High Lows Note) discusses optical formulas for the following RF-mount lenses:

  • RF 22mm f/1.4
  • RF 24mm f/1.4
  • RF 33mm f/1.4
  • RF 35mm f/1.4

Here they are:

Embodiment 1

  • FOCAL LENGTH (MM): 35.00
  • F NUMBER: 1.42
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 126.05
  • BACK FOCUS (MM): 11.06

Embodiment 2:

  • FOCAL LENGTH (MM): 35.00
  • F NUMBER: 1.42
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 128.31
  • BACK FOCUS (MM): 11.06

Embodiment 3

  • FOCAL LENGTH (MM): 34.99
  • F NUMBER: 1.43
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 123.63
  • BACK FOCUS (MM): 11.06

Embodiment 4:

  • FOCAL LENGTH (MM): 24.17
  • F NUMBER: 1.42
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 124.64
  • BACK FOCUS (MM): 11.06

Embodiment 5:

  • FOCAL LENGTH (MM): 33.11
  • F NUMBER: 1.42
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 126.01
  • BACK FOCUS (MM): 11.06

Embodiment 6:

  • FOCAL LENGTH (MM): 33.03
  • F NUMBER: 1.42
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 125.39
  • BACK FOCUS (MM): 11.06

Embodiment 7:

  • FOCAL LENGTH (MM): 34.99
  • F NUMBER: 1.43
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 122.18
  • BACK FOCUS (MM): 11.06

Embodiment 8:

  • FOCAL LENGTH (MM): 22.00
  • F NUMBER: 1.42
  • IMAGE HEIGHT (MM): 21.64
  • LENS LENGTH (MM): 125.60
  • BACK FOCUS (MM): 11.06

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

Laowa Argus 33mm f/0.95 For Canon RF Mount Announced (it’s for APS-C sensor!)

33mm F/0.95

Venus Optics announced a super fast lens for a series of camera mounts, RF mount included: the Laowa Argus 33mm f/0.95. But the lens is for an APS-C sensor.

Not sure what to think about the fact that there is an RF mount lens for APS-C sensors. Is it a sign that the rumored EOS R model with APS-C sensor is coming?

The Laowa Argus 33mm f/0.95 CF APO is currently available to purchase via Venus Optics official website and authorized resellers. The US price (ex-VAT) for Laowa Argus 33mm f/0.95 CF APO is $499. Pricing varies in different countries. Shipping starts from Early May for Fuji X and Sony E mount. The Nikon Z and Canon RF will be shipped from Mid May.

Venus Optics press release:

Venus Optics announce the first lens of the f/0.95 ‘Argus’ line, Laowa ‘Argus’ 33mm f/0.95 CF APO

Starts capturing chromatic aberration-free image at f/0.95

Anhui China, May 03 , 2021 – Venus Optics, the manufacturer specialized in making unique camera lenses, is proud to introduce the Laowa ‘Argus’ 33mm f/0.95 CF APO, a magnificent f/0.95 prime lens for APS-C cameras.

The ‘Argus’ name was originally from the Greek mythology and was the name of a vigilant guardian with a hundred eyes and an “all-seeing” sight. The name represents the ultra-bright f/0.95 aperture of the lenses and the exceptional image quality they deliver.

The 35mm f/0.95 is the first released lens of the much anticipated Argus line. Featuring the ultra fast f/0.95 aperture with APO design, the lens offers photographers and videographers a classic focal length for everyday shooting and a versatility to shoot at difficult lighting condition. The lens delivers exception image quality at wide-open and suppresses the chromatic aberration to the minimal. Couple with the 35mm (1.15 feet) minimum focus distance, a buttery smooth and exquisite bokeh rendering can easily be created. It also equips with multiple touches of videographer friendly features for narrative filmmaking.

Key Features of Laowa ‘Argus’ 33mm f/0.95 CF APO

• f/0.95 Ultra-fast aperture
• APO (Apochromatic Optical Design)
• 35cm closest focusing distance
• Exquisite bokeh
• Long focus throw
• Internal focus
• Low focus breathing
• Stepless aperture ring

APO (Apochromatic Optical Design)

The new Argus 33mm f/0.95 was designed to deliver impressive performance at wide-open aperture. It incorporates one Extra-low Dispersion Glass, one Aspherical Lens and three Ultra High Refraction Glass to suppress both lateral and longitudinal chromatic aberration (CA) to the minimal at all apertures in its class. It also delivers an exceptional image sharpness across
the frame.

Ultra-fast f/0.95 Aperture

The ultra-fast f/0.95 aperture adds a dreamy atmosphere to your image that no other lenses can compare. The shallow depth of field offers great versatility for selective focus and isolate the subject for a better story telling. The fast aperture also makes handheld shooting at low light situations much easier. You can now tell your story in any condition without compromising your image with higher ISO. It is perfect for everything from prestigious portraits, low light photography & videography to everyday & astrophotography.

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Modula Optical’s 33mm f/2 Lens Fuses Classic and Modern Optical Tech for Mirrorless Cameras (EOS M)


A new lens for mirrorless cameras got a start at Kickstarter, and it’s an innovative concept that seems to be pretty interesting.

Modula Optics developed a really unique, pancake-like 33mm f/2 prime lens for mirrorless cameras (Fujifilm X, Sony E, and Canon M) called the CM33. The cool thing about the CM33 is a range of modular upgrade options. The most unique option is what is called “Mods” — special optical elements (filters, lenses, etc.) that can be inserted into the middle of the lens near the aperture stop, rather than screwed on the front ring. This lets you create some really interesting optical effects in a completely “as needed” way, rather than requiring a specialized lens to, for example, get a bokeh apodization effect or well-controlled soft focus effect.

If this cool idea captures your attention, head over to Kickstarter to back up the project. Have a look at the video below for an overview.

Press release:

Today Modula Optical introduces the CM33 33mm f/2 lens for mirrorless cameras on Kickstarter. The CM33 brings the best elements of classic manual focus lenses to a modern ultra-compact design that is optimized specifically for today’s mirrorless cameras from Fujifilm, Sony and Canon *. The CM33’s proprietary optical design offers superb image quality and macro capability in a pancake form factor, and the lens forms the basis of a modular optical platform for a range of add-on optical effects in the form of Mods, as well as usability customizations and adapters.

Focusing the CM33 is unapologetically manual-only. It offers the kind of precision and feel found in great SLR and rangefinder lenses of the past which is lacking with the electronically-controlled manual focus in many of today’s autofocus lenses. The CM33 pairs that manual control with its Focus Finder feature: an external switch that holds the aperture fully open to temporarily decrease the depth of field so photographers can pinpoint their desired focus point precisely – a sort of reversal of the typical depth-of-field preview button. Used hand-in-hand with the manual focus aids built into mirrorless cameras, the CM33’s focus, aperture, and Focus Finder controls provide quick and robust creative control over captured images.

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