> >Is the Sigma 150-500mm lens the one they call "the >Bigma?" If so, my husband has that lens but never uses >it. I'll have to ask him if I can try it. Maybe he'll give >it to me!! > >So what you all are hinting at is the 2.8 lenses may be too >costly or heavy? > >Betty (formerly echorider)
The Sigma 50-500mm is the lens that's referred to as the "Bigma"
you are correct, 2.8 lenses are almost always heavier, and definitely more expensive. Give the 150-500mm a try, it might be the answer to your needs.