Hello everyone,
My mother plays in an indoor volleyball league and they are looking for someone to take photos. I'm on a super strict budget so I'm planning on purchasing a second hand 70-200 f4 without image stabilization. (I could go with something faster like the 85 1.8 but I like the range of the 70-200.) I know that f4 is pretty small and not effective in low light situations like an indoor gym but I figured I would see if anyone has ever given it a shot. I looked on the Lens sample page and didn't see many examples of what I'm particularly looking for so could anyone help out and give me some insight? Pics?
-I'm shooting with a 7D and because I am more of a videographer, I usually follow the 800ISO or less rule of thumb but with pics I know I can push for more. I also have the Manfrotto fluid head monopod so I don't need to worry about camera shake much...
Please help if you can! Thanks!

