Well known reviewer and Youtuber Christopher Frost posted his Canon RF 70-200mm f/4L IS review, and you can watch it in the video below. He says:
A really exciting (and very expensive) new RF mount lens arrives for Canon EOS R mirrorless cameras. Can it offer great image quality as well as such a small size?
I don’t think the RF 70-200mm f/4L IS is very expensive. Sure it is not a budget lens but neither one of Canon’s boutique lenses.
More Canon RF 70-200mm f/4L IS reviews are listed here.
How does this lens perform, and how does it compare to its faster sibling, the Canon RF 70-200mm f/2.8L IS (which is also heavier and bulkier)? Photography Blog posted their exhaustive Canon RF 70-200mm f/4L IS review. From the conclusion:
[…] this is arguably the 70-200mm zoom that the majority of Canon EOS R-series camera owners should buy – it’s literally a better fit for the smaller R-series bodies than the F2.8, whilst costing considerably less.[…] It offers fantastic sharpness and image quality at the centre and edges of the frame throughout both the zoom and aperture ranges, from the widest aperture of F4 to the longest telephoto length of 200mm.[…] Auto-focusing proved to be very quick, accurate and reliable on the Canon EOS R6 camera that we tested the lens with, while the very effective optical image stabilisation system that’s worth up to 5-stops on its own worked even better when paired with the R6.
Compared to the DSLR version of this lens […] the new RF 70-200mm F4 is shorter thanks to its retractable design and because you have to use an adapter with the EF version. It also offers even better image quality, a much
It’s not a secret that Canon is actively working on expanding the lens lineup for the EOS R full frame mirrorless system. A new Canon patent application adds to the long list.
Canon patent application 2021-18277A (Japan) discusses optical formulas for a bunch of prime lenses for the RF mount with f/1.8 and f/1.4.
RF 24mm f/1.4:
Focal length: 24.00 mm
F number: 1.40
Half angle of view: 42.03
Image height: 21.64 mm
Lens length: 120.00 mm
Back focus: 15.00 mm
RF 35mm f/1.8:
Focal length: 35.00 mm
F number: 1.80
Half angle of view: 31.72
Image height: 21.64 mm
Lens length: 100.00 mm
Back focus: 15.00 mm
RF 28mm f/1.8:
Focal length: 28.00 mm
F number: 1.80
Half angle of view: 37.69
Image height: 21.64 mm
Lens length: 100.00 mm
Back focus: 15.85 mm
RF 24mm f/1.8:
Focal length: 24.00 mm
F number: 1.80
Half angle of view: 42.03
Image height: 21.64 mm
Lens length: 110.00 mm
Back focus: 15.06 mm
RF 24mm f/1.4:
Focal length: 24.00 mm
F number: 1.40
Half angle of view: 42.03
Image height: 21.64 mm
Lens length: 120.00 mm
Back focus: 15.79 mm
RF 50mm f/1.4:
Focal length: 50.00 mm
F number: 1.40
Half angle of view: 23.40
Image height: 21.64 mm
Lens length: 100.00 mm
Back focus: 15.00 mm
More Canon patent applications for RF mount lenses are listed here. All Canon patents are listed here. Some particularly interesting patent applications we think might get into production are these:
Canon Celebrates Significant Milestone with Production of 150 Million Interchangeable RF And EF Lenses
MELVILLE, NY, February 3, 2021– Canon U.S.A., Inc., a leader in digital imaging solutions, announced today that its parent company, Canon Inc., reached a new lens-manufacturing milestone with the production in January 2021, of the Company’s 150-millionth RF and EFseries interchangeable lens for EOS cameras1— an RF70-200mm F2.8 L IS USM telephoto zoom lens (released in November 2019).
Production of interchangeable EF lenses for Canon EOS-series AF (Autofocus) single-lens reflex film cameras began in 1987 at the Company’s Utsunomiya Plant. Over the years, EF lenses have gained support from a wide range of users and production has since expanded to a total of four manufacturing bases, including Canon Inc., Taiwan; Canon Opto (Malaysia) Sdn. Bhd.; and Oita Canon Inc. in southern Japan.
EF lens production passed the 10-million-unit mark in 1995 and crossed the 50-million-unit threshold in 2009. In April 2014, the Company celebrated its first-in-the-world achievement of having manufactured 100 million interchangeable lenses, and now, setting a new world record for the most interchangeable lenses produced, Canon manufactured its 150-millionth RF and EF lens in January 2021. Laid end-to-end2, all of the RF and EF lenses Canon has manufactured thus far would measure approximately 7,736 miles in length — nearly equivalent to the Earth’s diameter, which measures approximately 7,917 miles.
Canon’s proprietary EF lenses, launched in March 1987 along with the EOS SLR camera system, have continued to evolve since their introduction, leading the industry through the incorporation of a wide range of innovative technologies, including such world’s firsts3 as the Ultrasonic Motor (USM), Image Stabilizer (IS) technology, and a multilayered diffractive optical (DO) element.
In 2018, Canon introduced the EOS R system and the RF series lenses, which pursues new heights of quality under the core concept of “Speed, Comfort and High Image Quality.” Today, the Company’s extensive RF and EF lens series lineup currently comprises a total of 118 models4, expanding the possibilities for image capture. In addition, thanks to the extensive lineup of lenses, Canon has maintained the number one market share for digital interchangeable-lens cameras since 2003 — a total of 17 years5— and in September 2019, the Company celebrated the production of 100 million EOS-series interchangeable-lens cameras.
Canon will continue refining its imaging technologies centered on its RF and EF lens lineup, striving to cater to the varying needs of photographers — from first-time users to advanced amateurs and professionals — while contributing to expanding the photographic and video imaging culture.
Here is a new Canon RF 85mm f/2 Macro IS STM Review. The RF 85mm f/2 is one of the less expensive lenses for the EOS R system.
Coming from Dustin Abbott, this is a full and exhaustive Canon RF 85mm f/2 Macro IS STM Review. From Dustin Abbott’s conclusion:
[the RF 85mm f/2 Macro IS STM] has a lot of great virtues optically, delivering great detail, nice bokeh, and a quality of rendering that is quite excellent.
But the autofocus left me often frustrated, and that’s even more disappointing in a day where I’m seeing great autofocus from all kinds of players in the lens market. […] This lens needed Canon’s Nano-USM rather than the cheaper STM motor. The great optical performance is unfortunately let down by a disappointing autofocus system.
[…] I really, really want to love this lens, as the idea of an affordable, optically excellent 85mm lens that just happens to do 1:2 macro competently is an enticing one. But while I loved the images I got from the [RF 85mm f/2], I found the process of getting them often frustrating. You’ll have to determine whether you can live with the flaws I’ve detailed. User reviews are generally very positive, though the one caveat that does routinely show up is some disappointment with the autofocus. The lens is otherwise good enough that it might be worth living with, but ultimately you’ll have to make that call for yourself.
As usual the review comes with a huge set of sample pictures, comparison charts, and all the information you might want to know. Dustin’s reviews are what I look for when I am about to purchase new gear. And for those who prefer to watch their reviews, Dustin Abbott provides a comprehensive video-review.
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