I won't make this review lengthy, because it's all been said before, but I will qualify myself by saying that I depend on photography for approximately half of my income, and I recently purchased this lens after many hours of online research. I own a Canon 7D, and I was looking for a lens that would fall into the wide/portrait range with the 7D's 1.6x crop factor. This lens was bought as a replacement for my old Tamron 28-75, which was a respectable lens. The Canon 17-40 has thus far been a very solidly built, light, fast-functioning lens. It autofocuses VERY quietly with its ultrasonic motor, and the autofocus is very accurate. On the 7D, I have found it to be a capable portrait lens at 40mm, as well as a great lens for interiors. I bought it as a complement to the Canon 70-200L, for a lightweight kit, and while I am missing the 41-69 focal range, I haven't really needed it. The lens produces VERY SHARP photos, and is much more reliable in quality than the Tamron. I would definitely recommend it to 7D users wanting a versatile walkaround lens, or to full frame users looking for an ultrawide with great sharpness.

Not a better portrait lens for the money available

Are use this Lens mount on my new canon M 50, unfortunately the camera was defective but the lense mount did its job.

Best lens value for a crop sensor camera. Works out to about an 80mm portrait lens on these cameras. Every Canon camera owner needs one of these in their bag.

Best Canon Lens, I think, it all depends on what your shooting.

Bought this Nifty Fifty for portrait and astrophotography. A very well built and affordable Canon lens EVERY photographer should have. Easy to use and works quite well. Am completely satisfied with this purchase.

I absolutely love this Lens. You must but if you are into portrait photography.

For only $150, you get a very high quality portrait lens (it even has a metal mount). The difference between this one and the f/1.4 does not look to be worth getting the 1.4