| Re: Sigma 50-500 lens, any good????
I am think of getting this lens too as I cant afford the 500 f4.5 prime lens.
I would be using it on a 1.4 crop senor body so at 500mm I should able to stretch the lens to 700 which is ok but the 6.3 f stop might be to slow for certain shots.
Can I ask those who have this lens what would be my maximum zoom length before I lose f5.6? |