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Canon RF 10-20mm f/4 L IS : Specifications and Opinions

The Canon RF 10-20mm f/4 L IS is a wide-angle lens for FF and APS-C, manufactured from 2023. The focus is done by Stepper Motor, it has image stabilization. The average price, when it has been added to the JuzaPhoto database, is 2407 €;

7 users have given it an average vote of 9.9 out of 10.

MOUNT

This lens is available with the following mounts:

Canon RF: this lens is compatible with mirrorless fullframe and APS-C Canon RF.

Specifications
Focal lenght	10-20 mm
Angle of view	130.3 - 94.4°
Format	FF, APS-C
Max. aperture	f/4
Aperture blades	9
Lenses/Groups	16 elements in 12 groups
Min. focus distance	0.25 meters
Reproduction ratio	0.12x
Features
Zoom type	Ring, interal
Stabilization	Yes (built in lens)
Focus	Stepper Motor
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters
Lens hood	Built-in
Weather sealing	Yes
Weight	570 g
Dimensions	84 x 112 mm
Buy
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Reviews

What do you think about this lens?

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The following opinions have been automatically translated with Google Translate.

Giallo63

sent on July 22, 2024

Pros: Superwide focal range like no other - final quality - compactness - lightness

Cons: Exposed front lens (no filters) - price

Opinion: It is a simply magnificent lens, at least for those who appreciate this extreme focal range. It is not easy to dominate such a vast corner of the field, and you have to be careful of abuses and tacky effects; but this depends on the user of it, not on the objective itself. It is a "born digital" lens for which it is designed according to firmware / software post-shooting corrections: however, the thing works so well that the results are superior to those of its predecessor from Canon, or the EF 11-24/4 L that I had in the past. https://www.juzaphoto.com/topic2.php?l=it&t=4804261

_franz_

sent on July 21, 2024

Pros: angle of view, contrast, sharpness, color richness, footprint, weight

Cons: No one, as far as I'm concerned

Opinion: As a happy owner of the Canon EF 11-24mm f/4 L USM I thought that such a lens could not be improved and so, switched from the 5D MKIV to the R5 I used that lens with the adapter for a few months. Unfortunately, the bulk, weight and "unbalance" during use convinced me to change it to the Canon RF 10-f/4 L IS, hoping to maintain the same level of quality. After a few weeks of use I had to change my mind: if I didn't think an improvement was possible, I noticed quite a few. Beyond the millimeter gained in amplitude (and the 4 lost, but I also have the 24-70 and therefore it is not serious) I found myself with a lighter, more balanced lens, with better color rendering and, at least apparently, with better sharpness at the edges. All other defects are easily eliminated in post-production. Personally, I rarely use this lens for landscapes or architectural photos, I prefer to use it because it allows me to "get to the heart of it" of many situations (dance, sports, concerts...) where there is no "main subject" but the action is the focus of the event. As for the price, I find it in line with the quality of the product and is even lower than the Canon EF 11-24mm f/4L USM. Indispensable for "creative photography".

user81750

sent on June 26, 2024

Pros: Travel, sharpness, weight and footprint

Cons: Cost and its "difficulty of use"

Opinion: I'll start with the cons: the cost is really considerable, given that the correction is entrusted to the software and not optical and it is a really challenging goal. Let me explain: the considerable width of field at 10mm really requires a lot of detail to fill the frame, otherwise you risk leaving large gaps in the frame empty or meaningless. If used in the architectural field, then, it requires the utmost attention that it is in vertical level otherwise there are many falling lines that can then be difficult to eliminate in post and that in any case make you lose frames. The positive sides, on the other hand, are its extreme excursion (I think maybe there is only a 9mm straight lens) which allows frames unthinkable for any other lens (there is still a lot of difference between 10mm and the various 12mm wide angles) and its sharpness. It really is a blade. Finally, its weight and bulk are really contained - reminiscent of the mammoth and very heavy EF 11-24 I owned. Conclusion: definitely a niche lens that the vast majority of amateur photographers will not need (the more common 14 or 15 mm of Canon's other wide-angles are more than enough in 99% of cases), but if you want a unique lens, if you like to photograph perhaps churches or you want an endless width of field in landscapes, it is to be taken, albeit with some economic sacrifices.

Photos taken with Canon RF 10-20mm f/4 L IS

Car trails at the Trollstigen pass

by Carloalbertoconti
39 comments, 7157 views [editors pick]

HI RES 10.7 MP

Rocchetta Mattei

by Juza
17 comments, 4287 views

HI RES 44.8 MP

Towards Lofoten

by Marco50
49 comments, 1977 views

HI RES 15.4 MP

After the snow

by Marco Antonini
29 comments, 911 views

The Chapel, Rocchetta Mattei

by Juza
4 comments, 2928 views

HI RES 44.8 MP

Underpass

by Luca Casale
20 comments, 993 views

HI RES 24.0 MP

Rocchetta Mattei, the Hall of Peace

by Juza
0 comments, 2373 views

HI RES 44.8 MP

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The Chapel, Rocchetta Mattei

by Juza
2 comments, 2807 views

HI RES 44.8 MP

The flow of water through the ruins

by Juza
4 comments, 2471 views

HI RES 42.2 MP

Bruges

by Ale Maggiore
30 comments, 812 views

HI RES 24.0 MP

Dutch extravagances

by -zeppo-
12 comments, 413 views

HI RES 25.9 MP

Reflections in Paradise

by Luca Casale
17 comments, 634 views

HI RES 19.6 MP

Princess

by Marco Antonini
23 comments, 550 views

Northern Lights on the glacier

by Luca Casale
11 comments, 525 views

HI RES 44.8 MP

De Haar Castle

by -zeppo-
10 comments, 514 views

HI RES 9.8 MP

Rocchetta Mattei, the Hall of Peace

by Juza
1 comments, 2396 views

HI RES 44.8 MP

The lookout

by Luca Casale
13 comments, 767 views

HI RES 24.0 MP

Milk way August 7, 2024

by Luca Casale
9 comments, 1059 views

HI RES 31.0 MP

Morimondo

by Giallo63
18 comments, 661 views

HI RES 4.6 MP

Parco Dora Turin

by Luca Casale
14 comments, 658 views

HI RES 8.5 MP

Super Vic

by Luca Casale
11 comments, 446 views

HI RES 44.8 MP

Santa Maria alla foce, Gubbio

by Giallo63
31 comments, 593 views

HI RES 7.8 MP

Milk way 7 August 2024 bis

by Luca Casale
8 comments, 738 views

HI RES 30.9 MP

Lofoten Norway

by Mandala75
10 comments, 267 views

HI RES 8.6 MP

Gubbio, 2025

by Giallo63
20 comments, 335 views

HI RES 7.8 MP

Santa Maria alla foce, Gubbio

by Giallo63
16 comments, 325 views

HI RES 9.0 MP

La Rocca - Romano di Lombardia

by Giallo63
18 comments, 631 views

HI RES 3.6 MP

Basei Tip

by Luca Casale
4 comments, 194 views

HI RES 19.4 MP

Passo delle Erbe

by Giallo63
20 comments, 352 views

HI RES 4.6 MP

Riomaggiore

by Carloalbertoconti
5 comments, 375 views

HI RES 10.7 MP

Eriophorum angustifolium

by Luca Casale
5 comments, 498 views

HI RES 15.2 MP

St. Catherine3

by Mmulinai
3 comments, 824 views

HI RES 3.7 MP

Music Room, Rocchetta Mattei

by Juza
2 comments, 1424 views

HI RES 44.8 MP

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New worlds

by Luca Casale
14 comments, 893 views

Sanctuary Way

by -zeppo-
5 comments, 609 views

HI RES 6.0 MP

Baptistery Basilica of San Vincenzo, Galliano (COJ

by Giallo63
12 comments, 402 views

HI RES 5.4 MP

Morimondo Abbey

by Giallo63
10 comments, 669 views

HI RES 4.4 MP

The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Reviews » Lenses » Lenses Canon » Canon RF 10-20mm f/4 L IS

Canon RF 10-20mm f/4 L IS : Specifications and Opinions

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Reviews

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Photos taken with Canon RF 10-20mm f/4 L IS