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
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Reviews

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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.

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.

One_cl1k

sent on 27 Luglio 2024

Pros: Sharpness, internal zoom, focal range af.

Cons: Honestly I don't know, especially for the price at which it is now!

Opinion: Optics that made me fall in love! I use it on my Canon r6 via adapter and the AF is very fast. On the sharpness side I can't complain, I have never made 100% enlargements but rated the photo for how it is in full screen. Very light and zoom excursion takes place inside the lens, purchased for 330€ I wouldn't know which side to attach it to. He does his very well (personal grade 9/10)

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

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