Quote Originally Posted by kcuf2 View Post
seriously, EX should be just ditched away... i totally dunno why sigma has the face to advertise the EX BIG BIG on their lenses. just like Nikon DX, its obviously inferior to full frame but Nikon advertise DX BIG BIG...

lol... i really wonder what are their marketing departments thinking..
EX-series is okay. EX-coating is NOT.