What I mean is since the proper set with warranty the warranty will not be usable in Singapore, so I might as well get the grey set with no warranty. Not sure if there is any international warranty though.
I am actually thinking of getting a Canon 50 mm prime second hand, if the grey set there is cheap I might as well get it there. Any one know if I can get them under SGD 100? I don't mind getting third party stuffs too.