My son is an accomplished college track multi eventer, (heptathlon and decathlon), and I would love to get some pictures of his events. I bought a Sony A200 and added a promaster edo 70-300mm lens 1:4 - 5.6 to get some shots from the stands. Indoor track meets are usually seen from far away and in not great lighting. I have read through many threads looking for help, but my limited knowledge of aperture and f-stops keeps me in the dark. What I would love to do is to get some information like what iso to set to and what f-stop and exactly what settings to use, and then I could use that as a baseline to learn more as I gain an insight as to what settings produce what results. I would love to take a photography class, but I travel a lot and can not be sure I could make al the classes. So, if anyone with knowledge of my camera can help me with some starting settings and basics, it would get me going in the right direction. Thanks for your anticipated help.