I'm hoping some people out there can give me some pointers on taking sports photos inside a stadium. I take a lot of netball photos and they're ok but they're definitely not great. I have a Nikon D3000 and usually use a Tamron 70-300 on sports mode. I also just purchased a Nikon 50mm 1.8G and I was wondering if this would work and then crop the pic afterwards or would the pic become distorted? The other thing I'm a little confused over is the ISO, how high can I crank the ISO without causing too much grain when I'm shooting in sports mode?
I would be really grateful of any tips and advice from anyone, as I love taking netball pics but I want to be happy with the results!!