I use a 16-85mm lens for studio, group, & title shots. For outdoor, I use 80-200mmf/2.8 for almost all of my agility work and the 300mmf/4 is my Bird in Flight lens, large mammal lens, etc. For numbers of photos, the 80-200mm is my most used lens, followed by my 300mmf/4, followed by my 16-85mm, followed by my manual focus 28mm/2, followed by my manual focus 55mmf/2.8 macro lens.