Today Only: Vello Auto Extension Tubes for Canon Lenses (RF, EF) – $49.95 (reg. $79.95)

Vello Auto Extension Tubes
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Only for today (12/5/2022) B&H Photo has a $30 discount on the Vello Auto Extension Tubes for Canon RF-Mount Lenses, for RF and EF mount lenses.

At a glance:

  • Shortens Minimum Focus Distance of Lens
  • Provides Macro Capability
  • Maintains Autofocus & Auto-Exposure
  • Durable Metal Mounts
  • For Canon RF-Mount Lenses
  • Includes 12 and 20mm Tubes
  • Use Tubes Individually or Combined
  • Lightweight and Durable Design
  • No Optical Elements

Get the Vello Auto Extension Tubes for Canon lenses at $49.95:

More selected deals:

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Canon RF 24mm f/1.8 Macro IS Review (versatile lens, fairly strong macro performance)

Canon RF 24mm F/1.8 Macro IS Review
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Here is a brand new Canon RF 24mm f/1.8 Macro IS review.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.8 to f/22
  • One UD Element, One Aspherical Element
  • Super Spectra Coating
  • STM Stepping AF Motor
  • 1:2 Max. Magnification, 5.5″ Min. Focus
  • Optical Image Stabilizer
  • Customizable Control Ring
  • Rounded 9-Blade Diaphragm

Dustin Abbott posted his exhaustive Canon RF 24mm f/1.8 Macro IS review. From his conclusion:

I didn’t love the Canon RF 35mm F1.8 Macro IS when I reviewed it, and while the RF 24mm F1.8 Macro IS STM is similar in so many ways, I actually feel more positive about it. Yes, it has way too much distortion and vignette, but it also nice and strong in a lot of different areas, including delivering a fairly strong macro performance.

What really stands out is the versatility of a lens like this.  You can do a LOT of different photography with a lens like this, from up close work, to walk around and street, to landscape and environmental portraits.

The RF 24mm  is not going to compete with L series lenses optically, but I also found that images had a fairly good pop to them and I generally liked the look of them other than shots where the bokeh got a little busy.  Some people love the 24mm focal length, and if that describes you, then the Canon RF 24mm F1.8 Macro IS STM is a lens that will probably become a favorite even if also sports a few flaws.

Read the full review at Dustin Abbott’s…

As usual, Dustin Abbott’s reviews come with a large set of test photos, sample pictures, and test charts and then some more. For those inclined to watch a review, the video below with the full review might the right choice.

Canon RF 24mm f/1.8 Macro IS:

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

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Canon RF-S 22mm f/2 STM Coming Alongside The Canon EOS R50?

Canon EF-M 32mm F/1.4 STM EF-M 22mm Canon Lenses
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Being owned by a commercial entity appears to do well to a well known source of Canon rumors. Here is another one in a row of recent rumors.

Rumor has it that the Canon might announced a new lens along with the rumored Canon EOS R50, the Canon RF-S 22mm f/2 STM.

The optical design of the Canon RF-S 22mm f/2 STM is said to be almost the same as the Canon EF-M 22mm f/2 STM. Indeed, this might be a port from the EF-M mount to the RF mount. No specifications leaked so far but if the optical design is similar to the EF-M 22mm, then these might (more or less) apply:

  • Moderate Wide-Angle Lens
  • Bright f/2 Lens Aperture
  • Exceptional Low-Light Performance
  • One Aspheric Lens Element
  • Built-In Stepping Motor
  • Smooth & Continuous AF
  • Seven Blade Circular Aperture
  • Short Minimum Focusing Distance of 5.9″

Stay tuned for more.

Source: Canon Rumors

Sigma CEO Says They Are Trying Their Best To Make RF Mount Lenses

Canon Rf Mount
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We know that Canon doesn’t really support or motivate third parties to build RF mount lenses. See here for more.

In an interview with Spanish site Photolari, Sigma’s CEO Kazuto Yamaki says his company is doing what they can to make RF mount lenses. The interviewer asks his questions in Spanish (with English subtitles) and Mr. Kazuto Yamaki answers in English.

Canon Patent: 16mm f/2.8 & 20mm f/2.8 With Image Stabilization

Canon Patent
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A new Canon patent to start a new week. Once more for lenses for the RF mount.

Canon patent 2022125455 (Japan, published 8/29/2022) discusses optical formulas for two prime lenses, a 16mm f/2.8 and a 20mm f/2.8, both with image stabilisation. From the patent literature (machine translated):

[Title of Invention] Optical system, lens device having the same, and imaging device

The present invention provides an optical system having a wide angle of view, a small size and light weight, and high optical performance in the non-stabilizing state while suppressing peripheral image quality deterioration during image blur correction, and a lens device and an imaging device having the same.

Description of the Related Art

Conventionally, as means for correcting image blurring, there are known a lens-shift type anti-vibration mechanism that shifts a part of an optical system and a sensor-shift type anti-vibration mechanism that shifts an imaging device. In a central projection optical system, the amount of movement of the image point in response to changes in the angle of incidence of light rays entering the optical system is not uniform on the imaging surface. However, image blur remains around the imaging surface.

The imaging apparatus of Patent Document 1 can correct image blur at a specific image point position, but cannot uniformly correct image blur at all angles of view.

In an equidistant projection optical system, the image quality around the imaging surface is less likely to deteriorate during image blur correction. Therefore, in order to suppress image quality deterioration around the imaging surface, it is necessary to generate a large amount of distortion in the negative direction in the central projection method, and reduce the absolute value of the amount of distortion in the equidistant projection method.

An optical system with a large absolute value of the amount of distortion aberration in the central projection method produces a greatly distorted image, so it is often used in combination with an imaging apparatus equipped with electronic distortion correction. In this case, if the distortion aberration in the central projection method is excessively generated, the image quality around the imaging surface is degraded due to the extension of the electronic distortion correction.

Example 1

  • Focal length: 24.22
  • F-value: 1.85
  • Image height: 19.38
  • Overall length: 85.24
  • Back focus: 12.06

Example 2

  • Focal length: 19.48
  • F value: 2.88:
  • Image height: 18.60
  • Overall length: 73.01
  • Back focus: 12.19

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

[via asobinet]

Do You Think Canon Made A Huge Mistake?

Canon Firmware Updates Viltrox Eos R7 Eos R10 Reuters Canon Cameras Europe Canon Eos R1 Eos R Rf 14-35mm Olympic Games Ef-mount Rudy Winston
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Did Canon make a huge mistake when they told Viltrox not to market auto-focus lenses for the RF mount?

The reason for Canon’s reaction are patent infringements, i.e. violation of Canon’s intellectual property. So, was this a dumb move, besides being an overzealous move? Me thinks third party RF mount lenses would benefit the EOS R system as a whole. But who am I to judge?

Christopher Frost posted a video-essay where he analyses and discusses Canon’s decision. The video lasts 7 minutes and is definitely worth your time.

Share your thoughts in the comment section.