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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 700 €;
326 users have given it an average vote of 9.0 out of 10.


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

MOUNT

This lens is available with the following mounts:

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



SpecificationsReviewsCompareBuySample Photos




 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 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
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Reviews



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avatarsupporter
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.


avatarjunior
sent on August 19, 2020

Pros: Sharpness, build quality, smooth dials, no barrel coming in and out during the zummate, no rotation during the maf, lightness, price, fast and precise safe maf, fixed f4.

Cons: Sharpness, lack of is, difficult to resell it except giving it away, huge original lampshade, with time and a little practice you fall in love with it.

Opinion: It's been about a year since I've been looking for this lens since I'm a fan and it took me a while to get a clear idea of the potential of this goal. Permuted with a canon 50 1.4 that on my eos 1200d gave problems of precision of maf while on the 6dii of bought went a bomb, I was immediately amazed amazed at the construction quality of the L series. Coming home I do a few f4 shots inside and I realize that as sharpness is not so much better than my 18-55 and moreover it is not even stabilized, I try to lift the flash integrated in the machine and I notice that from 17 to 24-25 mm of focal is cast a shadow of the same lens on the image, from there another bad surprise. I try to resell it immediately, given the bitterness in the mouth left, but after about 6 months of negotiations tests carried out on the field and attempts to permute with other objectivists it seems that this 17 40 does not please anyone and still remains in my kit. So I'm going to buy a sled flash (a fully manual lithium yongnuo but that makes you forget about the battery problem) and start playing it a little bit. Bammmm, surprise, the photos took another turn, the difference in niness with 18 55 are net, and from there I start to cheer me up. I continue to play it even during the day, I take it to sea, in the mountains, even during wet days and to my surprise does not miss a shot, maf always precise and fast enough, the lens does not behave very well even under 40 degrees of the beach and dials are still new as well as when I bought Obviously to reach a sharp appreciable at least for me you have to close at least to f5.6. At the end of the story I decided to keep this optics and not to sell it because of its reliability, nn misses a shot even on my small 1200d. Just to complete the picture, I use the reflex to take photos in the family and the 17mm l I chose for the interior that on apsc I find them quite wide and I never felt the need to drop below 17. Finally using this 17 40 on apsc nn I notice no excessive distortion problem neither of vignette nor loss of sharpness at the edges. For those who want to have a reliable, light and low-priced optics to replace at 18 55 I highly recommend it.

avatarjunior
sent on July 26, 2020

Pros: Sharpness, build quality, price, Af

Cons: Not stabilized, bulky lampshade, 17mm but maybe better 16?

Opinion: Very good target, really good. Used you take it little by little. It makes the 24 70 f4 almost smearing in terms of sharpness. At 17 mm there is a certain distortion (not excessive anyway) but I think it is inevitable on one side and on the other the effect of the distortion may not necessarily make the shot un appreciateable. Maybe the 16 30 has less distortion and goes to 16, but we have at least a price difference of 200 in the used. It's not worth it at least for me. Also because I think it compensates for these small flaws in terms of build quality and image. The Af is fine. The lack of stabilization is a disadvantage compared to other targets especially for shots that require more exposure, perhaps for interiors. With tripods or monopods of course takes away the problem and in the lower focal lengths the problem practically disappears. Bulky lampshade but notice that can also be mounted another type (I put the one of the 24 70) With canon 6d a great pairing. I also tried it with sony a6000 and adapter ef and II viltrox and it works really well af fast.

avatarsupporter
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....

avatarsenior
sent on August 29, 2019

Pros: Lightweight, diameter filters,build quality from L series

Cons: Quality you have edges not excel

Opinion: I do not like the wide-angles too much, spread them use them without falling into the trivial or obvious shot, especially for a half key like me. Usually with the 24mm of 24-105 I do everything. But in some situations having something more driven is definitely better and so I'm diving into the purchase of this 17-40. Never was the pulse decency more a good. Acceptable quality, good in the center decade you have edges providing a somewhat kneaded and in-detail image. Improves by closing the diafhramma but still the difference remains. Distortion is noted as the important vignette but these are things that are settled in a click.erto Now on the market there is better but at a higher cost, it depends on the needs and use that you want to make. For me seen the possibility to use the slab filters, for me essential, the robustness and reduced weight as well as the footprint thanks to the internal zoom and not least the price at which I found it, I could not have asked for better. He was a great companion on my last trip and will certainly be in the future




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