Patent: Canon RF 28mm f/1.4L USM and Canon RF 35 f/1.4L USM

Canon Rumors Guy

EOS-1D X Mark III
CR Pro
Jul 20, 2010
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www.canonrumors.com
Canon News has uncovered a patent showcasing what would be two popular fast prime optical formulas in the form of an RF 28mm f/1.4L USM (Yay!) and an RF 35mm f/1.4L USM.
As you may remember, we recently saw a patent for the long-rumoured Canon RF 35mm f/1.2L USM. It probably doesn’t make much sense to have both a `1.2 and a 1.4 35mm lens in the lineup. The RF 28mm f/1.4L USM does excite me on a personal level.
Canon RF 28mm f/1.4L USM

Focal Length: 28.00mm
F-number: 1.42
Half angle: 37.69°
Image height:21.64mm
Lens total length: 140.62mm
Backfocus: 21.99mm

Canon RF 35mm f/1.4L USM

Focal Length: 34.98mm
F-number: 1.42
Half angle: 31.73°
Image height: 21.64mm
Lens total length: 154.45mm
Backfocus: 16.17mm

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Last edited:

Larsskv

EOS R
Jun 12, 2015
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Does "Lens total length" not mean what I think it does? These would be wayyyy too big at 140mm and 154mm in length. The EF 35 1.4L II is 105mm. The new Sony 35mm 1.4 is 96mm.
My first reaction as well. As much as I appreciate the RF lenses, I do envy Sony for the small but still very good 24 and 35 f1.4 GM lenses. I thought the larger RF lens mount would benefit Canon in both size and quality. Maybe I am wrong.
 

Joules

doom
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Jul 16, 2017
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Does "Lens total length" not mean what I think it does? These would be wayyyy too big at 140mm and 154mm in length. The EF 35 1.4L II is 105mm. The new Sony 35mm 1.4 is 96mm.
You have to subtract 20 mm from total lens length to get how much is sticking out of the body. And of course you have to add 24 mm to an EF lens length to get a fair comparison, as that's the length of the adapter.
 

CanonFanBoy

Purple
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Jan 28, 2015
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Does "Lens total length" not mean what I think it does? These would be wayyyy too big at 140mm and 154mm in length. The EF 35 1.4L II is 105mm. The new Sony 35mm 1.4 is 96mm.
9mm difference. 9mm makes absolutely no difference to me. I find it very hard to believe that 9mm is a deal breaker for anyone. It certainly isn’t a reason to switch brands. 9mm? Nothing to sweat about.
 

Berowne

... they sparkle still the right Promethean fire.
Jun 7, 2014
311
169
I would appreciate smaler lenses on my R6. The EF-Lenses are quite big with adapter. Here is a comparison with my Leica SL and the 2.8/60mm Macro-Elmarit. This is the size i would have for RF-Primes.
 

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SwissFrank

from EOS 1N to R
Dec 9, 2018
526
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It probably doesn’t make much sense to have both a `1.2 and a 1.4 35mm lens in the lineup.

I think it just about does, for 35, 50, and 85, and especially if there's also some other feature differentiating them. Maybe the 50/1.4 would be a typical Gaussian design, compact but not that sharp, while the 50/1.2 would be... whatever it is that 50/1.2 is :-D

Similarly I'd welcome a super-portable 35/1.4 (similar to the pre-ASPH Leica design, super-small), for whenever you toss the camera in the backpack, then a 35/1.2 that aimed to be the last word in bokeh, say, and might be 4x heavier and more expensive, and not just for the extra 1/3 stop.
 

Del Paso

M3 Singlestroke
Aug 9, 2018
1,141
1,186
Finally, Canon seems to have understood that there is a real demand for Hi IQ wide-angle primes. Nikon and Sony already have theirs.
Good news!
What about a 1,8/20mm ?
 

Del Paso

M3 Singlestroke
Aug 9, 2018
1,141
1,186
I would appreciate smaler lenses on my R6. The EF-Lenses are quite big with adapter. Here is a comparison with my Leica SL and the 2.8/60mm Macro-Elmarit. This is the size i would have for RF-Primes.
I too have the R 2,8/60 .
And absolutely love it, not only for being small.
It is deadly sharp, contrasty, distortionless, flare resistant, low vignetting : just a perfect MF lens.
Is this the way to go: smallish EOS R cameras with barrel-sized lenses ?
We need more options.
 

photonius

EOS RP
Jul 13, 2013
243
24
Hmm, I don't know, this trend of lens development starts to look excessively over-engineered. Ok, I guess some people might wish to have an extremely well corrected lens with large aperture. But how much is this lump of glass going to weight? IQ will certainly be much better than the old style SLR lenses, but at some point the improvement isn to worth the extra weight and size. Maybe it's my old eyes that don't need pixel perfect resolution anymore.... Anyway, as long as it sells for Canon, it's ok. But don't forget lenses for the rest of the photographers that would like to have something reasonable that is better than a smartphone.
 

rbr

EOS M6 Mark II
Sep 11, 2010
95
20
Funny timing on this one. I just ordered the Sigma 28 f1.4 ART to use on my R5. Canon really needs to step up their game on the wide end for the RF lenses. I look enviously at all the great wide angl;e options available in the Sony E mount and what Nikon has already put out for the Z cameras.
 

privatebydesign

EOS-1D X Mark III
CR Pro
Jan 29, 2011
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Funny timing on this one. I just ordered the Sigma 28 f1.4 ART to use on my R5. Canon really needs to step up their game on the wide end for the RF lenses. I look enviously at all the great wide angl;e options available in the Sony E mount and what Nikon has already put out for the Z cameras.
It always makes me smile when an individual says something like “Canon needs to...”. Canon are turning out class leading and tech leading lenses and bodies faster than anybody else.

As an aside, can you get uncooked RAW files from the Sony’s or Nikon’s when using those new small fast wide primes? I suspect not....
 

dirtyvu

EOS M6 Mark II
Jan 7, 2019
71
56
Can't wait for the 35 1.4! Wonder how much. I can imagine the 1.2 being rf pricey. Hopefully 1.4 is truly moderate
 

rbr

EOS M6 Mark II
Sep 11, 2010
95
20
It always makes me smile when an individual says something like “Canon needs to...”. Canon are turning out class leading and tech leading lenses and bodies faster than anybody else.

As an aside, can you get uncooked RAW files from the Sony’s or Nikon’s when using those new small fast wide primes? I suspect not....
Fair enough. I must say that I love the files coming from Sigma ART lenses on the R5. I can deal with the extra ounces.
 
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