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Title: Canon 17-40
Review: Having planned to move from a crop body to a full frame or a 1.3 crop (if i decide to get a 1DMkIII instead of a 5D) i needed to replace my 17-55mm lens. Given the 17-40 build quality and weather proofing this was really value for money even though it is an f4. I really didn't need to go into a 2.8 for this as I use a couple more lenses if i really need a wider aperture. The picture quality is good and i need to use it a little more to rate this as great, since i'm currently using it with a 40D i may not be seeing the best of it.
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