Looking at adding a lens to the line up to better shoot youth sports. Have a 7 y.o. and 4.5 y.o. who are beginning to play more and more sports. Oldest is currently doing baseball and taekwondo. Has played some soccer as well. Youngest will probably start soccer this fall and may follow in the baseball and TKD footsteps. So far I've been using the 24-105mm with acceptable but not outstanding results. The 104 mm reach is a limitation in outdoor sports and the f/4 is a limitation indoors for TKD. So, I'm in the market for a new lens to improve the situation, with the canon 70-200mm choices being at the top of the list.
Here's a list of contenders with some ideas about pros and cons for each. The Canon 70-200mm f/2.8 seems like the best choice, but I wonder about overall reach and I'm leery about the size and weight. The lack of IS would be a concern indoors, but less so outdoors. The 70-200 f/2.8 IS is probably out of my price range.
Looking for thoughts and opinions on my choices. Any good 3rd party lenses that I should consider?
Canon 70-200 f/2.8 L USM ($1,400)
Pros: f/2.8 better for low light and subject isolation, Image Quality, compatible with 1.4x and 2.0x extenders, construction quality
Cons: weight, is 200mm enough?, lack of IS (issue for sports?)
Canon 70-300 f/4-5.6 L IS USM ($1,600)
Pros: extra reach @ 300mm, IS, size and weight, construction quality
Cons: less subject isolation, less compatible and less useful with extenders, no tripod ring, reversed zoom/focus rings
Canon 70-200 f/4 L USM ($700)
Pros: Cost, Image Quality, weight
Cons: Lack of IS (issue for sports?), less subject isolation, f/4 not as useful with extenders,
Canon 70-200 f/4 L IS USM ($1,400)
Pros: Image Quality, IS, weight
Cons: less subject isolation, f/4 not as useful with extenders,
Tamron AF 70-300 f/4-5.6 SP Di VC USD XLD ($450)
Pros: extra reach @ 300mm, IS, size and weight, cost
Cons: Reduced Image Quality? less subject isolation, less compatible and less useful with extenders, reversed zoom/focus rings, Construction quality