LensTip.com

Cons: Using the lens wide open is a complete non-starter because the corners are simply unusable. For landscape or architecture photographers that doesn\'t matter a jot. On modern cameras and the widest focal lengths you must set to f11. Don\'t be afraid to set to auto ISO and you can easily keep the camera still enough to hand hold if you also enable a minimum shutter speed in advance.

Pros: Build quality is truly excellent, micro contrast impressive and colour rendering as good as you\'ll get. It isn\'t possible to get an adequate ultra wide-angle for full-frame in a native Canon EF lens from any other lens unless you have a lot of money to spend.

Summary: Showing its age somewhat and necessary to take certain precautions in order to achieve very good image quality at the widest end, but a bargain buy for what it is capable of producing.

Cons: No IS; Sharpness in corners; Resolution; Best sharpness @ f/8

Pros: Lightest L-lens; Build quality; Weather sealed; Price

Summary: Good value for mony for this sheapest L-lens from Canon however the optical quality could be better. Weak corner sharpness is not visible @ APS-C.

Cons: Corner sharpness, but is not very viseable in real conditions unless you crop a lot

Pros: Quality, very good pricing second hand

Summary: A very satisfied owner

Cons: Good build quality

Pros: Image quality. Horrible uqlaity on edges! Worse than I ever seen! I thought it cuold be question of my lens but tested few lenses thanks to seller and - every lens has horrible edges! Shame on Canon!

Summary: NEVER AGAIN!

Cons: Typical characteristics showing in all wide angle lenses. Many of these can be dealt with in Photoshop or DxO which can minimize all the typical complained about wide angle issues.

Pros: Well valued L lens which is great for FF but alternatively will work with crop sensor. Decent build and used market prices these at a commodity level. Some great values and even new with current rebate a very fair value.

Summary: Great value lens that fits physically fits both camera types. Simply a very good lens for landscapes and any issues can be easily rendered out of the final print or presentation.

Cons: Waviness distortion, hood shape, it should be better if it has IS * Not good idea to using on APS-C

Pros: Zoom length is good for landscape and travelling on FF, best flare and ghost resistance in this lens class on Canon FF, Good IQ when choose the right aperture for each focal length, light, weather seal

Summary: Great choice for Canon Landscape and travelling

Cons: from Weak to Bad in corners < 23mm

Pros: Only lens in this class (ultra wide + affordable), fast AF, build quality, 77mm and not 82mm for filters, light & small.

Summary: There is almost no other choice if you want an ultra wide & affordable zoom lens on which to screw filters.

Cons: Bad optical characteristics on 17-20 mm: significant CA and soft corners.

Pros: Wide angle, light and small, cheapest L-lens in Canon's range, well build.

Summary: I'd to change this lens on the either Canon 24-70 2.8 or new Tamron 24-70 2.8 VC to have the same working wide end. And also f2.8, and also 70 mm :)

Cons: No IS, only f/4

Pros: sharp, very solid build quality, very fast auto focus, weather sealing.

Summary: Great lens for landscape and outdoor photography.

Cons: Too expensive. Absolute POS with 5Dmk2 -crappy corner resolution.

Pros: Fast and accurate AF.

Summary: A flawed design from Canon.

Cons: weak corner sharpness on full frame, only F 4.0 there is sample variation even on L level lenses,

Pros: verry good build quality, verry good value over time, good picture quality on APS-C, you can use the Hood of the 28-300 lens for APS-C

Summary: affordable L glass if you don't like to spend the money for the Zeiss 21 mm prime

Cons: the original lens hood not compatible for APS-C user.

Pros: value for money, very good colour, perfect build quality. the autofocus is amazing, very fast, only 2% missfocus.

Summary: The first L lens I bought and I'm very happy with this lens.

Cons: biggest aperture is f4, no image stabilization, 40mm is less than kit lens. corner softness (on full frame)

Pros: superb build quality, sharp pictures, cheap price (for L series) ultra sonic motor, full time manual focus doesn't extend when zooming

Summary: great wide lens, rugged and solid. And the way to go if the kit lens isn't doing the job.

Cons: Slight barrel distortion at wide settings, some corner CA.

Pros: Very well built, excellent price for L lens, performance generally very good.

Summary: Great lens for the money, especially when compared with 10-22 which is still great. Barrel distortion is quite noticeable at 17mm and that is probably its only drawback. Great performance at f/8.

Cons: not as sharp than other L-lenses, at fullframe weeker

Pros: good resolution, NO(!) CA´s, NO(!) light falloff, distortion easy to fix, fantastic build quality, good price

Summary: Its a lens nearly without faults, at APS-C nearly perfect, fullframe just good. The prize is a nice surprise (that sounds really poetic!). Get one for APS-C and use it later as fullframe!

Cons: f/4, No IS, 40mm is restrictive

Pros: BUILD QUALITY!!! Image Quality is very good - very sharp images.. Nice price.. Non extending and non rotating front element.. Hood.. Silent autofocus...

Summary: I would say its one of the best landscape lens. Great for outdoor photos..

Cons: Goes only to 40mm

Pros: Excellent build quality, very sharp, super fast focus

Summary: A great lens for my cropped body

Cons: None

Pros: Razor Sharp, built like a tank, Great L optics

Summary: Great lens for both FF and Croped DSLR

Cons: only f4

Pros: sharp, build quality, well priced

Summary: Nice wide zoom lens