I shoot a combo of both zooms and primes, but most of the time it's a zoom. My primes are the 50mm f/1.8. I use this lens when I want a sharp, light weight lens, or if I need more speed in low light situations. My other prime is a 100mm f/2.8 macro lens. I use this lens mostly for macro shots. I have also used it for shooting some football and baseball because it's my longest f/2.8 lens. My zooms are either way to wide, or way too slow for shooting sports.