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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 999 €;
350 users have given it an average vote of 9.0 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.
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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.
Cons:TA edges, aberrations, stabilization (but at this price...), CAP
Opinion:A well-made, solid, tested optics (depopulated since 2003), with a really good value for money. The focal range allows different photographic possibilities. Leave a little work on the aberrations and, to have a sharpness on the whole frame, the aperture must be closed around f / 8. But if you don't have to take home the work in a nanosecond and you can spend a few more minutes posting, it's a really good lens! Reason why, perhaps, it is not the most suitable lens for the professional who works intensely. The hood is impressive, it's true, but using the lens mainly on a tripod is not a factor that creates particular problems for me and aesthetically I must say that I do not mind. Another interesting feature in my opinion is that, by changing the focal length, the barrel does not protrude beyond the length of the lens, reducing dust infiltration and maintaining a practically identical balance and footprint from 17mm to 40mm. However, if I have to find a mole, especially taking into account that it is an L series, it is the cap: with the hood inserted it is very uncomfortable to put / remove. For comparison, the 50mm f / 1.4 (therefore not the most extraordinary lens from Canon) has a much more "intelligent" cap, with the opening in the center instead of at the edges, so as not to have to rub your fingers on the hood, which in the 17-40 has a velvet that does not get along very well with the fat of the skin. The same problem I found on the 70-200 f/4 L. They are small but really annoying, especially for the series with the red stripe.
Pros:price, flare resistance, AF, colors, overall sharpness, dimensions, weight
Cons:sharpness at the extreme edges at TA, slight distortion and vignetting but all solvable with correction on LR
Opinion:Bought for interior photos and for travel lens gave me a lot of joy. Paid very little, they practically sell it off. It has excellent flare resistance that I can leave the hood at home (it is also bulky). It has compact dimensions and weighs very little. Beautiful colors and fast in the pursuit of people. The sharpness in the center and middle center is very good even at TA, the extreme edges instead must be recovered by closing at least at f8. The distortion and vignetting don't bother me because I fix them on LR.
Opinion:Excellent lens for landscaping and architecture. It is a dated lens, but on the used it is stable at about € 400 and for this price there is nothing comparable for Full Frame. Sharp at f / 8, beautiful sunstar, holds the flare excellently, very light, good focal range, little distortion easily accommodated in post, works well with filters. I use it on 6D mark II and on my sensor I do not find it lacking, certainly at f / 4 the edges are not great, but at f / 8 it is excellent from the center to the edges. Yes, the new ones are certainly much sharper, but they weigh and cost more, so evaluate yourself. The only real flaw is the chromatic aberration that can become annoying in scenes with great excursion from shadows to lights, but only sometimes it was difficult for me to fix it in post, 90% just apply the profile on Lightroom and it's done. In my opinion it is not suitable for sensors from 30MP upwards, but for the 24MP in my opinion it is still excellent.
Opinion:Probably the least sharp L-series lens and with the worst AF ever had. The sharpness was inconsistent at virtually any aperture, and the AF was not accurate. I specify that I bought it new and not used, maybe there is variability between specimens. Today it is used at a very attractive price and if you have the opportunity to try it and see that it is a good copy (good sharpness at f / 8) take it. To take pictures of landscapes with the Sun in the field will not disappoint you for its resistance to flares. It is filterable with 77mm filters. It weighs little and takes up little space in the bag. My advice? If you can save money and aim for a 16-35 L IS, if instead you find it used at 200 euros, verify its correctness and then take it.
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.
The following opinions have been automatically translated with Google Translate.
![[editors pick]](shared_files/layout/ep_badge.jpg){kind=icon}
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