24-105mm Archives - CanonWatch

Canon Set To Release A RF 24-105mm f/2.8L IS Lens?

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EDIT: Thanks to Robert M for having pointed out in the comment section that there is a patent for a very similar lens.

Canon might release a Canon RF 24-105mm f/2.8L IS for the EOS R system, according to a new rumor.

A low rated rumor (by the source itself) suggests Canon might soon release an RF 24-105mm f/2.8L IS lens. Says the source:

[…] we have an anonymous report that Canon plans to announce a Canon RF 24-105mm f/2.8L IS in the first half of 2023. On the surface, that is a lot of overlap of focal ranges. There is the RF 24-70 f/2.8L IS, RF 24-105 f/4-7.1 IS STM and the RF 24-105mm f/4L IS. Adding a 4th lens to this range just doesn’t feel likely. It does remind us of the EF 24-70 f/4L IS Macro, a lens a lot of people thought didn’t make sense with the overlap, but actually turned out to be a pretty popular lens.

Time will tell. In the meantime, stay tuned.

Source: Canon Rumors

Canon RF 24-105mm f/4-7.1 STM IS Review (good mechanical quality)

July 19, 2021
Canon Reviews
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Here is a review of the inexpensive Canon RF 24-105mm f/4-7.1 STM IS lens for the EOS R system. It seems the mechanical quality is the only good thing they found.

Optical Limits tested the Canon RF 24-105mm f/4-7.1 STM IS, and their verdict isn’t very positive:

In absolute terms, it’s clearly a sub-standard lens. Its native characteristics range from good to downright terrible. The miserable vignetting and distortions have to be seen to be believed. Conversely, the resolution is actually pretty decent – which is a bit of a pity because you just won’t use this lens without auto-correction.
That’s being said – it is highly unlikely that you invest thousands into a high-megapixel camera and then just a few hundred on a cheap kit zoom lens. The pixel-level sharpness increases towards lower sensor resolutions and the vast majority of users have cameras featuring 20 to 30 megapixels (as of the time of this review). Within this context, the Canon RF 24-105mm f/4-7.1 STM IS makes much more sense. The 24mm setting will still not be perfect here but it’s certainly usable.
[…] the mechanical quality of the lens is pretty good for a kit zoom lens. The used materials are of high quality. The (extending-)inner lens tube is a bit wobbly though and this seems to be a theme across Canon consumer-grade Canon lenses.
Read the review at Optical Limits…

Other reviewers have a less negative opinion about this lens. All Canon RF 24-105mm f/4-7.1 STM IS reviews are listed here.

The Canon RF 24-105mm f/4-7.1 IS STM sells at $399: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA

Key features:

RF-Mount Lens/Full-Frame Format
STM Stepping AF Motor
Center Macro Focus, 1:2 Magnification
Optical Image Stabilizer
Customizable Control Ring
Rounded 7-Blade Diaphragm

Click here to open the rest of the article

Canon RF 24-105mm f/4L IS Review (a very good lens, but good enough?)

June 28, 2021
Canon Reviews
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Canon RF 24-105mm F/4L IS Review Canon EOS R

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Here is a new Canon RF 24-105mm f/4L IS review. This lens is getting very popular, both among users and reviewers. Another great lens by Canon, and this one is also affordable. It’s not a Canon boutique lenses but it has a very good performance.

At a glance:

RF-Mount Lens/Full-Frame Format
Aperture Range: f/4 to f/22
Super Spectra Coating
Nano USM AF System
Optical Image Stabilizer
Customizable Control Ring
Rounded 9-Blade Diaphragm

Jacek Sopotnicki posted his Canon RF 24-105mm f/4L IS review. The RF 24-105mm f/4L IS seems to be an excellent travel lens (in my opinion).

Canon RF 24-105mm f/4 L IS B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA

Click here to open the rest of the article

Canon Patent: RF 24-100mm F/4 and RF 24-105mm f/4 IS Lenses For EOS R

May 13, 2020
Canon Patents
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Another Canon patent application for RF mount lenses: RF 24-100mm f/4 and 24-105mm f/4 IS.

Canon patent application 2020-67542A (Japan) discusses optical formulas for an RF 24-100mm f/4 and an RF 24-105mm f/4 IS lens.

RF 24-100mm f/4:

Zoom ratio: 4.13
Focal length: 24.72 53.96 102.00 mm
F number: 4.12 4.12 4.12
Half angle of view: 41.19 21.85 11.98
Image height: 21.64 21.64 21.64 mm
Lens length: 133.43 152.26 171.08 mm
Back focus: 18.51 32.77 43.74 mm

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

A 8mm f/4 circular fisheye lens for the Canon EOS R system
A battery grip that works with differently siszed cameras
A 100-400mm f/5.5-7.1 lens for APS-C cameras. EOS M or DSLR?
RF 17-70mm lens for EOS R system
IBIS coming to the EOS M and PowerShot lineup?
Patent Application: mirrorless camera with large display and virtual control wheel
Patent Application: IBIS and Lens IS Working Together
Patent application for high speed mirror movement and control
Patent application for an RF 14-28mm f/2 lens
Patent application for an RF 50mm f/1.8 lens
Patent application for a smart lens cap
Patent application for celestial auto-focus
Patent application describing a Pop-Up Flash With LED
Patent application describing the optical formula for a RF 70-300mm F/4-5.6 IS lens for EOS R systems
Patent application describing how to improve burst rate by compressing raw files
Patent application describing a new way to review photos from a sequential shot
Patent application that describes technology to improve wireless communication while reducing power consumption
Patent application to spot and reduce moire artefacts in image data
Patent application for weather sealed lens adapter
Patent application for AI powered predictive camera control system
Patent application for 18-55mm kit lens with LCD display
Patent application to reduce noise in image files

[via Hi Lows Note]

Canon RF 24-105mm f/4-7.1 IS STM Review (one quirky little lens)

April 30, 2020
Canon Reviews
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Here is a Canon RF 24-105mm f/4-7.1 IS STM review, a more budget-oriented lens option for the EOS R full frame mirrorless camera system.

Christopher Frost Photography posted a 12min video where he discusses the features and performance of the Canon RF 24-105mm f/4-7.1 IS STM:

Is this the low(er) budget zoom lens for EOS R camera’s that we’ve been dreaming about – and how much will a surprisingly dark maximum aperture really bother you? Let me tell you now – this is one quirky little lens.