Thinking of buying the sigma 17-50mm f2.8 ex dc os hsm for my nikon d3100 which is a dx camera.
The thing is i will upgrade in a full frame dslr in 1-2 years so i dont wont to be buying a lens that wont be usefull on my future full frame camera
will those lens be ok? i am bying the hsm version so would be able to autofocus on nikon d3100
thank you
См. статью: Will sigma 17-50mm f2.8 ex dc os hsm work on a full frame camera?