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

Canon EF 17-40mm f/4.0 L USMCanon EF 17-40mm f/4.0 L USM

Canon EF 17-40mm f/4.0 L USM

Canon EF 17-40mm f/4.0 L USM

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, when it has been added to the JuzaPhoto database, is 788 €;
346 users have given it an average vote of 9.0 out of 10.

If you have used this item, you can add your vote:  


This lens is available with the following mounts:

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

SpecificationsReviewsCompareBuySample Photos

 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

 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


Canon EF 17-40mm f/4.0 L USM, buy on Ebay Ebay


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sent on May 21, 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.

Google Translate  The following opinions have been automatically translated with Google Translate.

sent on July 13, 2022

Pros: Autofocus, flare resistance, global rendering, colors, construction, unbeatable quality-price ratio.

Cons: Good sharpness but more could have been done, otherwise none.

Opinion: Exceptional lens, an all-rounder practically both on Full Frame and on APS-C, a lens to always take into account, excellent wide angle, versatile and with a light, solid and very comfortable construction in the rings, a truly battle autofocus with an incredible management of the flare through its elements, you will almost never miss a shot if you have high-performance engines! Beautiful colors, deep especially if you work with landscapes in sky tones, but also in macro, also offering a blurred soft enough to be an initial F4 ... It is not as sharp as its successors and its big brothers okkey, but it offers a sharpness already from F4 acceptable, closed obviously then it becomes much sharper and manageable, totally closed then it becomes pure poetry ... Now searchable even at 370-400 euros is stra recommended!

sent on August 03, 2021

Pros: Sharpness, transportability, internal zoom, focal range, new life with Sony body

Cons: Hood so not very functional that you leave it at home

Opinion: Fantastic lens and very sharp in the center. The sharpness at the edges is good from f8 and therefore great for landscapes on easel. The focal range makes it less specialized than the 16 35. The use as a handyman and the only travel lens adapted on a full frame Sony body where the AF does not miss a beat in all modes, the failure to stabilize the lens is compensated by that of the sensor and in crop mode it can become a 25-60 if necessary.

sent on April 26, 2021

Pros: Construction, internal AF USM, compact.

Cons: Specialist landscape optics

Opinion: Hate and love with this perspective. I tried to use it for different photographic genres, as I used the 24-70 IS L f4. Nothing could be further from the wrong. It's a landscape-optimized lens. Diaphragms in which it expresses excellent sharpness from f8 to f11. Excellent flare resistance. He prefers a careful study of framing, preferably on an easel.

sent on April 20, 2021

Pros: Great for scenery and some street.

Cons: nobody

Opinion: Great on any sensor. For outdoor excursions, landscapes and a few streets you will be widely appreciated. Excellent colors and details. For more than 15 years he has stood up to the most famous L's and other brands saving a lot of money. Very light, to be kept as a second or third choice in the backpack. Undeaworthyly devalued. All doing landscape that marked an era.

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