Canon EF 17-40mm f/4.0 L USM : Specifications and Opinions

The Canon EF 17-40mm f/4.0 L USM is a wide-angle lens for FF and APS-C, manufactured from 2003 to 2022 (discontinued). The focus is done by Ultrasonic AF Motor (Ring-USM), it does not have image stabilization. The average price was 999 €;

359 users have given it an average vote of 9.1 out of 10.

MOUNT

This lens is available with the following mounts:

Canon EF: this lens is compatible with reflex fullframe and APS-C Canon EF.

Specifications
Focal lenght	17-40 mm
Angle of view	103.7 - 56.8°
Format	FF, APS-C
Max. aperture	f/4
Aperture blades	7
Lenses/Groups	12 elements in 9 groups
Min. focus distance	0.28 meters
Reproduction ratio	0.24x
Features
Zoom type	Ring, interal
Stabilization	No
Focus	Ultrasonic AF Motor (Ring-USM)
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	77 mm
Lens hood	Yes, supplied
Weather sealing	Yes
Weight	500 g
Dimensions	84 x 97 mm
Buy
Canon EF 17-40mm f/4.0 L USM, buy on Ebay JuzaPhoto contains affiliate links from Amazon and Ebay and JuzaPhoto earn a commission in case of purchase through affiliate links.

Publish your advertisement on JuzaPhoto (info)

Reviews

What do you think?

Do you want add your opinion? You do it by joining JuzaPhoto, it is easy and free!

There is more: by registering you can create your personal page, publish photos, receive comments, join discussions and you can use all the features of JuzaPhoto. With more than 260000 members, there is space for everyone, from the beginner to the professional.

Jaccop

sent on 21 Maggio 2017

Pros: Solid, tropical conditions and resistance to flare, wide on FF, great 24-70 on crop, price

Cons: nothing, on APSC. FF on the corners to maximum apertures are bit soft

Opinion: Good L-series I was very happy with the sharpness . A lens that is really good for a landscape. Construction and color rendering at the top, the colors are very loyal and does not enter the lens dominant. I use it with a b + w 10 stop and I was never disappointed. E 'on 400 euro and it is, in my opinion, a good quality for your pictures. As mentioned above, with the crop APSC is uan has made remarkable throughout the frame, which becomes sublime between f 9-11 (values ??almost stringent for a landscape). Everything lies in the use that he wants to do. Ultimately, I would never change this lens, absolutely.

The following opinions have been automatically translated with Google Translate.

Alessandro_Gennari

sent on 20 Maggio 2026

Pros: Size, weight, cost on the second-hand market

Cons: Lens hood, is a project from the early 2000s and therefore there are inevitably more modern and high-performance lenses but you know and it is a rather relative "con"

Opinion: I needed to replace my shabby 16-35mm 2.8 and in the end I opted for this 17-40. I had thought for a long time whether to take another 2.8 and in the ballot I had also put the 16-35 f/4 and even the most modern wide angles with RF mount. Several considerations contributed to the final choice: a) taking mainly sports photos, I use the wide-angle lens very little and mainly for the panoramas of the arenas and competition places or other "wide-ranging" but not action photos, which is why I would have taken at smaller apertures anyway, where this lens gives its best: all factors that pushed me to turn to the cheapest proposal even in the field of quality lenses, because this is still an L Series with its beautiful red band b) it is light, compact (apart from the lens hood, definitely massive) and inexpensive on the second-hand market c) I can use it both on the R6 with which I work via adapter and on my beloved 5D Mark III when I shoot for pleasure, which led me to exclude the decidedly more expensive RF version Given these premises, having found a copy on the used for 250 euros I took it home and immediately put it to the test. He does his job very well, I need hypersharpness from edge to edge as much as the photos I take for work go on social media and last the time that someone posts a cuddly kitten in their feed. Personally, I am happy with the purchase also in 2026, highly recommended for those who want a quality wide-angle lens without breaking the bank.

Lorenzo902018

sent on 17 Novembre 2024

Pros: Unbeatable current quality/price, L-series construction, L-series colours

Cons: In relation to the price I would say none

Opinion: The 17-40 to date is probably the most affordable Canon wide-angle for full frame for those who want to do landscape without spending a fortune. The construction is impeccable (even better than today's), it has excellent sharpness (especially closing a little and on sensors that are not too dense). The colors it gives are fantastic, the autofocus is perfect. Simply a must buy, I replaced it with the 16-35 f4 because of the stabilizer and the superior sharpness already at TA, but I can assure you that the 17-40 is still a great lens today. Last consideration goes to its incredible backlight hold, it is almost impossible to have flare even with full sun in the frame.

Mugarone

sent on 21 Agosto 2024

Pros: The best wide-angle for value for money

Cons: Bulky lens hood, f4 only

Opinion: In 2024 it represents the best quality/price compromise for those who want a wide-angle on FF. Purchased practically new for less than € 250, it is certainly not the best Canon wide angle, but it has the build quality of the L series, representing a good compromise for those who, like me, do not live from photography, but still want valid lenses. As already pointed out by others, you need to close a little to get a good sharpness and the lens hood is definitely bulky, but if you are looking for a lens for landscapes (perhaps using a tripod) without having to break the bank, the 17-40 L is a must have.

Danielemonti1991

sent on 17 Agosto 2024

Pros: Weight, price, tropicalization, colors

Cons: Nothing in particular.

Opinion: Bought for less than 300€. I use it on 5d II with full satisfaction. Great for landscapes from f8 and up. It has also been tested in some event/party and is very versatile. Certainly being F4 do not expect an exceptional detachment of the subject from the background (even at 40mm). For those like me who switch from a normal wide-angle to an L-series zoom, the difference is noticeable above all in the colors.

There are 104 more reviews. Show all »

Photos taken with Canon EF 17-40mm f/4.0 L USM

The house among the rocks

by Caterina Bruzzone
437 comments, 104628 views [editors pick]

You can only live in memories?

by Roberto Copeta
225 comments, 71990 views [editors pick]

Camogli

by Caterina Bruzzone
261 comments, 76651 views [editors pick]

Way of the cross

by Caterina Bruzzone
377 comments, 37570 views [editors pick]

Sunset in Playa Catedrales

by Caterina Bruzzone
332 comments, 77019 views [editors pick]

And there was light .. finally!

by Caterina Bruzzone
309 comments, 57844 views [editors pick]

Season of Mist

by Daniel Paravisini
124 comments, 46180 views [editors pick]

Colors in gray

by Monica Rotulo
230 comments, 26078 views [editors pick]

Publish your advertisement on JuzaPhoto (info)

Real dawn

by Nightfall
115 comments, 31018 views [editors pick]

Voltri beach

by Caterina Bruzzone
222 comments, 54392 views [editors pick]

Digital Crack

by Federico Ravassard
89 comments, 27529 views [editors pick]

Sssss!! Vernazza is still sleeping

by Caterina Bruzzone
160 comments, 53436 views

The Lisbon Oceanarium

by Carlo Bassi
279 comments, 25659 views [editors pick]

Night in Cirque Maudit

by Federico Ravassard
66 comments, 21203 views [editors pick]

Escher style

by Carlo Bassi
286 comments, 19164 views [editors pick]

One Hander Backflip

by Micheleambrosini
169 comments, 40443 views [editors pick]

Kaboom

by Maurizio Palumbo
100 comments, 12970 views [editors pick]

The merchant gramophones

by Carlo Bassi
302 comments, 30272 views [editors pick]

An infinite beauty

by Carlo Bassi
205 comments, 11962 views [editors pick]

The Stone Occho

by Fabrizio Bellandi
119 comments, 13309 views [editors pick]

Plateau of Valensole

by Alberto Vergani
123 comments, 49138 views [editors pick]

Before dawn ... in Venice

by Carlo Bassi
210 comments, 15749 views [editors pick]

The pleasure of shopping

by Caterina Bruzzone
141 comments, 40167 views [editors pick]

Everyone is just ...

by Caterina Bruzzone
217 comments, 38151 views

Forca d'Acero 2

by Luca Alessi
187 comments, 45925 views [editors pick]

Godafoss

by Alberto Vergani
131 comments, 26713 views [editors pick]

Camogli small lighthouse at sunset

by Caterina Bruzzone
218 comments, 36596 views [editors pick]

San Pietro Caveoso and Madonna dell'idris

by Eus
196 comments, 17113 views [editors pick]

PRO

by The_misfits
101 comments, 24755 views [editors pick]

No Time

by Caterina Bruzzone
226 comments, 23898 views

Walk in the rain

by GattaAgata
184 comments, 12873 views [editors pick]

Euzone

by Dantes
52 comments, 12327 views

Publish your advertisement on JuzaPhoto (info)

Apple Khumb

by Photoexplorer
69 comments, 37343 views [editors pick]

Matera

by Eus
166 comments, 17890 views [editors pick]

Let the party begin!

by Riccardomelzi
139 comments, 17047 views [editors pick]

An enchanting vision

by Carlo Bassi
189 comments, 14602 views

Man discover fire

by Sdrart
66 comments, 19660 views

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.

Canon EF 17-40mm f/4.0 L USM : Specifications and Opinions

Buy

Offerte Usato RCE

Reviews

What do you think?

Photos taken with Canon EF 17-40mm f/4.0 L USM