Disclaimer before my reviews/questions/comments: I mainly shoot video and have had a 50d and currently use a T2i.
Is this on a 1.6x cropped sensor? I plan on getting this as my next lens purchase for a wide angle.
I heard the fall off is not too bad and there are some quick post things that gets rid of it, but it just makes the files quite a bit larger. Dont know how the fall off corrections would work with video though.
The lens I would recommend to everyone is the Sigma 18-50mm 2.8-4.5 (for canon) . There is just a 2.8 too, and I would recommend it over the 2.8-4.5 for obvious reasons, but its kind of irrelevant for my review.
The Sigma 18-50mm 2.8-4.5 is only $199 and comes with a lens hood (2.8 is $400). This lens is made to replace any kit lens and if your thinking about getting a kit, DO NOT, and get this lens instead. It blows away the 18-55 kit lens in my mind. The 18 is wide (even on a cropped sensor) enough for a basic kit lens and there is zero fall off or vignetting. It is a full stop better at 2.8 verse 3.5, and it is very noticeable. The lens also doesnt feel like a POS like the kit lens does. It is pretty durable (no dust protection, but you dont get that with low end lenses) and once again, comes with a free lens hood. This is not a high end lens, but it is meant as a replacement for the 18-55 crap kit lens that canon puts out. I cant even describe how much better this lens is. It puts out great color, its quick and quite autofocus, and I have had no issues with lens creep. It also is easy to manual focus with and is a little bigger then the 18-55.
Like I said, the Sigma 18-50mm 2.8-4.5 is not some crazy great lens, but I love it and is far better then the kit lenses and I would recommend not getting that kit lens (or selling it if you have one) and picking up this guy instead.
Ill talk about more to come. BTW, the 50mm 1.8 canon is a great lens. Good for beginners looking to get used to shallow DOF. It doesnt always come out beautifully, but when it does its great. I havent tested it too much but I found about 3 out of 4 times it comes out sharp and in focus using autofocus. It is very very hard to get things in focus with this puppy. I use it some to practice and play with manually shooting video at 2.0 and its not too hard on the t2i screen (need a monitor). I would recommend it for 80 dollars. One thing also, I would recommend getting the mark I not the mark II (newer one) because it has a metal connection and not as cheap. If you have the 350, Id say go with the 1.4, since its sharp at 1.8 and the 1.8 isnt really sharp until after 2.0. You get what you pay for.
Here is a 50mm at 2.0... first time using it so it obviously isnt perfect and its from FB, so its low quality...
Here is a picture at 18mm on the sigma. I didnt take these for this thread, so I think i was at like 4.0 or something. Dont really remember, but it shows there is no fall off or vignetting on my cropped sensor (hard to tell since the picture was taken in the shade)...
And yes these pics were taken last week for those wondering with the snow.
Hope that helped.