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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. 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 645 €;
321 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 AF   Yes
 Full Time MF   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


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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 March 30, 2020

Pros: construction, constant f4, tropicalized, internal zoom, backlight resistance, price of used,af

Cons: vignette, bulky lampshade, lack stabilization

Opinion: taken used at the modest figure of 400 euros combined with the sony a7r and canon 6d, a all-rounder lens that immediately impressed me for its resistance to the backlight, but especially for the construction (a real "tank"), I used it in any situation and I assure you that water and dust are not a problem. The dials are quite fluid, the lampshade is perhaps a little too bulky (if it can be a defect!). Ultrasonic focus is a real bijou, it works wonders; there is no stabilization, but honestly I have never missed it. At 17 mm it turns out to be unclear at the edges unless you use a rather closed diaphragm, it improves considerably by increasing the focal excursion; true, vignette a lot and the distortion stands out, but it is solved without any problem in post production. In conclusion, a great handyman that I highly recommend for landscape/architectural photos, and to all those who want to make a nice leap of quality without spending a fortune, why not, maybe replacing the 18 55....

sent on August 29, 2019

Pros: Light, filter diameter, yield, L-series build quality

Cons: For what I paid him... Nobody

Opinion: I do not like too much grandcorners, difficult to use them without falling into the banal or obvious shot, especially for a half key like the undersigned. Usually with the 24mm of 24-105 I do everything. But in some situations having something more pushed is definitely better and so here I dive into the hold of this 17-40. Never was impulse deccision more apt. Excellent quality, of course there is better but at a cost very much higher, the possibility to use the slab filters, for me essential, robustness and reduced weight as well as the footprint thanks to the internal zoom. I couldn't have found better. He was a great companion on my last trip and will certainly be in the future

sent on April 18, 2019

Pros: Weight, ergonomics, value for money, diameter screw filters, sturdiness, internal Zoom, AF silent and fast, general image rendering.

Cons: Few and after years of intensive use, I do not find, apart, if you want to be really picky, a slight flare in situations really extreme.

Opinion: I have read about all the colors on this lens, I bought it again at the beginning 2014, as in practice that should be normal, I immediately made the micro-adjustment of optics on my camera bodies. The result is that for 5 years I accompany and works every day (or almost) always satisfying my expectations and those of customers. Flare does not exist in the vast majority of cases, apart from some really extreme, but these are cases where the majority of other wide angles would already be KO, lightweight, robust construction typical of L series, AF motor really fast and quiet, Sharp both at the center and at the edges, I use it practically always between F8 and F11 and in rare cases that its at full aperture the result does not disappoint me at all. What to say more, I wanted to replace it with the new 16-35 F4 IS, but winning team does not change and will remain with me for quite some time.

sent on February 02, 2019

Pros: Weight, ergonomics, quality/price ratio (used), internal zoom, robustness

Cons: Low-light, quality loss at F4, bulky lens hood

Opinion: I've been using this lens for over a year, initially I used it on a 1100d then with APSC sensor and it proved a good handyman; However I discovered its true qualities when I started using it on a 5d; I think it's a suitable lens for FF SLR where it proves great for landscapes, street and travel photos. The weight and the construction are balanced with a sturdy machine body. From the point of view of quality reflects exactly what is expected, excellent image quality (not excellent), not too bright (F4) and at full aperture loses sharpness (if only a little), AF fast. Advised the purchase used (with maximum expenditure of €400 you make a bargain).

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