Canon Patents

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

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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 21.64mm 21.64mm
  • Total lens length: 146.50mm 128.90mm 147.50mm
  • BF: 15.19mm 27.72mm 59.84mm

Kit.

EOS 5D Mark IV
Apr 25, 2011
2,232
1,542
Not as wide as 15-85 - not ideal.

Good as a FF kit lens, though.
 
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Tom W

EOS R5
Sep 5, 2012
321
303
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.
 

Del Paso

M3 Singlestroke
CR Pro
Aug 9, 2018
1,709
1,974
Some whiners ("only big and heavy lenses nobody wants to buy") should now at least be satisfied...:p
 
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criscokkat

EOS RP
Sep 26, 2017
326
297
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
75
50
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
 

IggyMo

I'm New Here
Mar 29, 2019
22
32
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

EOS RP + 5D Classic
Aug 31, 2018
767
942
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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Del Paso

M3 Singlestroke
CR Pro
Aug 9, 2018
1,709
1,974
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

Can't be true:
There must have been at least 90% of Wonderful Sonies according to Youtube ;).
 
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okaro

EOS 90D
Oct 10, 2015
138
18
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
293
27
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

Mirrorless or bust.
Apr 27, 2019
112
159
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 R
CR Pro
Dec 27, 2017
916
1,583
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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Philrp

Waiting patiently for my APS-C EOS R
Sep 2, 2018
36
61
Oh man that will fit so nicely on my APS-C equipped EOS R.

Yippy!!!!
 

twoheadedboy

EOS R5
CR Pro
Jan 3, 2018
281
421
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.
 

neuroanatomist

I post too Much on Here!!
CR Pro
Jul 21, 2010
27,251
6,786
While it's not a standard APS-C kit lens,
It has a FF image circle. Think of it as a 17-40 combined with a 24-70, with a variable aperture to keep size/cost down as a non-L lens. Honestly, I think it would be an excellent standard zoom for the EOS RP.
 
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criscokkat

EOS RP
Sep 26, 2017
326
297
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.