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 2409 €;

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?

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The following opinions have been automatically translated with Google Translate.

Giallo63

sent on 22 Luglio 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 21 Luglio 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 26 Giugno 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, 7408 views [editors pick]

Rocchetta Mattei

by Juza
17 comments, 4439 views

Towards Lofoten

by Marco50
49 comments, 2259 views

After the snow

by Marco Antonini
29 comments, 1093 views

Underpass

by Luca Casale
20 comments, 1113 views

The Chapel, Rocchetta Mattei

by Juza
4 comments, 3047 views

The Chapel, Rocchetta Mattei

by Juza
2 comments, 2922 views

Rocchetta Mattei, the Hall of Peace

by Juza
0 comments, 2488 views

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Dutch extravagances

by -zeppo-
12 comments, 584 views

The flow of water through the ruins

by Juza
4 comments, 2552 views

Bruges

by Ale Maggiore
30 comments, 951 views

Princess

by Marco Antonini
23 comments, 670 views

Reflections in Paradise

by Luca Casale
17 comments, 699 views

Northern Lights on the glacier

by Luca Casale
11 comments, 640 views

De Haar Castle

by -zeppo-
10 comments, 651 views

Rocchetta Mattei, the Hall of Peace

by Juza
1 comments, 2493 views

The lookout

by Luca Casale
13 comments, 858 views

Milk way August 7, 2024

by Luca Casale
9 comments, 1179 views

Parco Dora Turin

by Luca Casale
14 comments, 759 views

Super Vic

by Luca Casale
11 comments, 541 views

Morimondo

by Giallo63
18 comments, 768 views

Santa Maria alla foce, Gubbio

by Giallo63
31 comments, 727 views

Milk way 7 August 2024 bis

by Luca Casale
8 comments, 840 views

Lofoten Norway

by Mandala75
11 comments, 350 views

Basei Tip

by Luca Casale
4 comments, 297 views

Gubbio, 2025

by Giallo63
20 comments, 412 views

Santa Maria alla foce, Gubbio

by Giallo63
16 comments, 405 views

La Rocca - Romano di Lombardia

by Giallo63
18 comments, 732 views

Passo delle Erbe

by Giallo63
20 comments, 414 views

Riomaggiore

by Carloalbertoconti
5 comments, 498 views

Sant'Antonio Abate - Ranverso (TO)

by Giallo63
17 comments, 263 views

Eriophorum angustifolium

by Luca Casale
5 comments, 592 views

St. Catherine3

by Mmulinai
3 comments, 917 views

New worlds

by Luca Casale
14 comments, 990 views

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Music Room, Rocchetta Mattei

by Juza
2 comments, 1513 views

Sanctuary Way

by -zeppo-
5 comments, 686 views

De Haar Castle

by -zeppo-
12 comments, 202 views

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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