Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Is it good for weddings?
Document: Great lens for the money! Now weddings and events are even more fun when you do not have to constantly back up or find room to shoot small groups.
I use this lens at all of my weddings. Excellent wide view, especially on the Canon 5D mark ii. I highly recommend this lens!
Thris lense has been a great walk around lense. Very versatile for doing weddings, gardens, portrait and urban projects. Very little feathering on the edges and the field depth is adequate. Fast and quiet lense! I'll give this 4 stars!
Reasonably quick lens and focus, with a nice wide angle to it. This lens spent a lot of time on my camera for many events and weddings, but unfortunately I've found the lens to be a little soft, and it doesn't perform the best in low light situations.
Are you a budding photojournalist? A band photographer? A proud father?To everyone except those hoping to do photojournalism or weddings, I would say, this lens is the obvious choice. It is light, but the build quality is very solid. The focus and zoom are so well-damped, it just feels like you are holding a quality lens. And you are.
I am a professional wedding photographer, and have photographed over 100 weddings. I used this lens for a number of those (fortunately sparingly) and have found this lens to produce very soft images 90% of the time. I have used it under all kinds of lighting conditions, and no matter what the conditions, most shots are soft. I see the price is around $800, which is insane. Don't waste your money.
Now I wish I had saved up for the extra stop of light. When you are doing weddings or phojo, the only thing that matters is your photos. Don't put them at risk by having to shoot at 1/30 when you could be shooting at 1/60. Nothing in photoshop cures motion blur.So, if you don't shoot lowlight, or don't care about a little less bokeh, there is no reason to buy the 16-35. This lens is lighter and just as sharp.
Ahhh, this was my very first L lens... I loved her so much.It was also the first lens I bought when I upgraded to a full frame camera and wow did it blow me away... built like a tank, weather sealed, internal focus, quick and accurate AF, and simply gorgeous color and contrast. And affordable!As it turns out I started shooting more and more portraiture and then weddings so I started using it less and less.
I shoot both wild life and weddings both of which require at times the camera be as quiet as possible up to the moment you shoot. This lens delivers; I can barely hear it focus even with my ear against the lens and can not hear it focus at all only a couple of feet from the lens.Decisions Decisions:Like a lot of other people I was looking to upgrade my basic Kit 18-55 lens (very soft muddy lens) I got with my Canon Rebel XTi camera.
Plus I found that you can get an image very sharp if you process it using the Canon Digital Photo Professional that came with you camera. I also use as a backup at weddings and for out door wide angle wedding shots and landscapes.9-22-2008 Update:I'm getting ready to purchase or lease the new Canon 5D Mark II and boy oh boy is this 17-40 L lens going to come in handy.
Answer: Yes! A wide angle lens will always be helpful when taking the group shots especially if you do not have plenty of space to back up. It is also helpful in getting those shots that capture the entire event that is taking place.