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Title: Another dissapointment from an "L" lens :-(
Review: I have purchased several Canon lenses off Amazon, and this is by far the worst yet. I own an Olympus C-7070 and it takes sharper pictures at f2.8 than this lens takes at f12. Canon has some major quality control issues that they need to resolve, because this is not the first time I have had issues with soft lenses from them. The first lens I bought for my Canon 5D was the 24-105mm. When I received it, I had the similar issues with shapness (or lack thereof), so I returned it to Amazon and got another copy. Again, same problem. It took me sending the lens directly to Canon for calibration to get the problem solved, but who wants that kind of hassle?? Come on Canon, get it together, and improve your quality control. I love my 5D, but it should not be this hard to find good lenses from your "L" lineup...
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