Hi. New to Forum. Been raising freshwater tropical fish since high school. Purchased first SLR camera in college. New to digital since I acquired a used Canon D10 this spring. Canon ef100-400 lense and a Canon ef 28-105 lens. Have worked as a wildlife biologist in the midwest for 28 years. Love taking wildlife and outdoor photos. Have started trying to photograph some of my fish and tanks. Not too good yet. Hoping I'm not too old to learn.