This is not a purchase I will be doing for a long time but I am already planning a list of lenses I will be owning in the future. Right now I own the 18-55 kitlens and 300/f4 L IS so I want something in between them.
I love wildlife but I already have the 300 prime for that. The 70-200 will be used as a "go-to" lens when I go to football games, motorsport and other stuff like dog agility (I own a dog and love going to meetings and so on).
Now you might ask why I am not looking at the Canon 70-200 2.8 IS (Mk II perhaps?), well I am not a professional and I don't see a need to spend that kind of money on a lens that won't bring me back any money. Simple as that.
Please share your opinions, looking for replies from people who have actually used both lenses so please no "obviously Canon will be better than Sigma because I think so" bs.