Patent: Canon RF 17-70mm f/3.5-5.6

Canon Rumors Guy

EOS 1D MK II
Jul 20, 2010
7,691
343
Canada
www.canonrumors.com
Canon News has uncovered a patent for a new RF mount optical formula, this patent shows an RF 17-70mm f/3.5-5.6 in various forms. This looks like some kind of wide kit style lens because of the variable aperture.
Below are the three embodiments:
Canon RF 17-70mm f/3.5-5.6

Focal length: 17.40mm 35.02mm 68.69mm
F-numbe:r 3.57 4.18 5.85
Half field angle: 51.19° 31.71° 17.48°
Image height: 21.64mm 21.64mm 21.64mm
Total lens length: 149.59mm 133.68mm 150.50mm
BF: 13.43mm27.63mm 57.99mm

Canon RF 17-70mm f/3.5-5.6

Focal length: 17.10mm 34.82mm 72.70mm
F numbe:r 3.57 4.18 5.85
Half angle of view:  51.68° 31.85° 16.57°
Image height: 21.64mm 21.64mm 21.64mm
Total lens length: 151.00mm 135.57mm 157.71mm
BF: 13.13mm 27.81mm 63.49mm

Canon RF 18-80mm f/3.5-5.6

Focal length: 18.70mm 37.55mm 77.50mm
F-number: 3.57 4.18 5.85
Half angle of view: 49.16° 29.95° 15.60°
Image height: 21.64mm...
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Tom W

EOS 80D
Sep 5, 2012
198
128
17-70 f3.5-5.6 is an ideal FF compatible aps-c lens for a mirrorless 7d ish camera.
Yes, an ideal focal length for APS-C, or a nice ultra-wide zoom for FF.

Also, with the cropped 4K on the R, it would be a nice lens for video.
 

criscokkat

EOS RP
Sep 26, 2017
252
219
Madison, WI
Not as wide as 15-85 - not ideal.

Good as a FF kit lens, though.
True, but that's not a standard kit lens on any of the 000x or 00x models. The normal kit lenses are 18-55 and 18-135. In the past they have started at 17, but the 15-85 was always a premium upgrade.

I suspect the primary reason it's not 18-55 is that it cost the same to make it slightly wider and slightly longer, and 70mm rolls right into a 70-300 (or 70-200 if it's an upsell). This just cements in my mind that aps-c will come to RF. We will eventually see RF rebels, and probably even a full frame rebel at a 999 price point, even cheaper "street" price. I think the only thing that will NOT happen is RF-S.
 
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Ale_F

6D - 7D
Nov 22, 2018
45
32
I'm back from a vacancy changing several times the Wide and standard zoom.
This is the solution for travellers.

PS report for flamers:
In a group (general tourist) we have
1 5D4
1 6D
3 rebels
1 nikon reflex aps-c
1 fuji ML
1 sony 6x00
 
Mar 29, 2019
8
15
So an aps-c R is confirmed then. I guess it won't take long for it be announced after the 90d. But then again I don't understand why the 90d release oin that case? Especially since the 90d seems more like a replacement of 80d than 7dmii?
 
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navastronia

5D Classic
Aug 31, 2018
182
209
So an aps-c R is confirmed then. I guess it won't take long for it be announced after the 90d. But then again I don't understand why the 90d release oin that case? Especially since the 90d seems more like a replacement of 80d than 7dmii?
It's just a patent. Patents don't confirm anything, so I wouldn't get my hopes up just yet.
 
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okaro

EOS 80D
Oct 10, 2015
129
9
17-70 f3.5-5.6 is an ideal FF compatible aps-c lens for a mirrorless 7d ish camera.
It would make no sense to get s FF superwide and waste it with a crop sensor. On full frame such superwide to short tele would be nice.
 

timmy_650

EOS RP
Dec 20, 2012
275
12
That is like my dream walk around around lens. I can shoot landscapes well and get good pictures of my daughter as well with out switching lenses.
 

Rivermist

5D Mk3, RP & SL2
Apr 27, 2019
25
43
Houston
Definitely a full-frame lens for full-frame camera, I think (as do some of the folks in prior answers) that one needs to re-think zoom lens strategies with the potential of a new mount. I am leaving tomorrow for a trip to south America, wanting to walk around with light(er) gear than my usual 11-24, 24-105 and 100-400, and using current lenses that I have: 16-35 L IS, 24-105 and either the 70-200 L 4.0 IS or 70-300 DO. Note the overlaps, not always a bad thing but I have 2 bodies for 3 lenses for this use case. Instead, with new RF gear I could have a 17-70 and a 70-200 (or 70-300, sure bet they will offer that at some point in time), so with 2 bodies I do not need to change lenses. Brilliant!
I see assumptions of this not being an L lens because of the variable aperture, but the EF 100-400 and 70-300 L are variable aperture, so let's not jump to conclusions.
 
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canonnews

EOS RP
Dec 27, 2017
313
261
Canada
www.canonnews.com
True, but that's not a standard kit lens on any of the 000x or 00x models. The normal kit lenses are 18-55 and 18-135. In the past they have started at 17, but the 15-85 was always a premium upgrade.

I suspect the primary reason it's not 18-55 is that it cost the same to make it slightly wider and slightly longer, and 70mm rolls right into a 70-300 (or 70-200 if it's an upsell). This just cements in my mind that aps-c will come to RF. We will eventually see RF rebels, and probably even a full frame rebel at a 999 price point, even cheaper "street" price. I think the only thing that will NOT happen is RF-S.
While it's not a standard APS-C kit lens, even though it would be much better to have an RF-S 17-70mm, it would to the job in a pinch if Canon wanted to simply release an APS-C camera into the wild with no supporting RF-S lenses. It's one of the few full frame lenses that I could see fitting into both full frame and aps-c, as a kit lens for both sensor sizes. the EOS RP could use it as a sweet kit lens, and so could an APS-C RF camera.

Also, this is the second time we've seen 17-70mm in patent applications, which makes it a bit more likely it's going to happen.
 
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twoheadedboy

EOS R Fanboi
Jan 3, 2018
33
28
Kenosha, WI
This would be perfect, because I could carry this and a 70 - 200 plus a fixed lens or teleconverter and have a very reasonable bag.

Right now I carry a 16 - 35 + 24 - 105 f/4's + fixed (28 or 85 f/1.4), or 16 - 35 + 70 - 200 f/2.8 + 50 f/1.2 or TC's. None of those configurations are as ideal as this would be.
 

criscokkat

EOS RP
Sep 26, 2017
252
219
Madison, WI
i don’t know why so many people are so defensive by the prospect of canon selling an r mount aps c camera. This lens patent works for both.

As I recall, Canon said they planned to sell more full frame lenses, they picked their words carefully and never said systems or bodies when talking about the RF mount.