JSJR4 wrote in post #5376569
Will the 17-55 work if I ever got a full frame? If not, will the 16-35?
Will the 17-55 work if I ever got a full frame? If not, will the 16-35?
The 17-55 won't even work on the 1D family ("1.3 crop") cameras. The 16-35 (original or MkII) is the only Canon solution in this focal length range for use on all EOS cameras.

