So I just got a canon rebel t4iCanon Rebel T4i and imI'm having toubletrouble with my lens (18-135mm stmSTM lens). ItsIt's when I have my camera on movie mode, when imI'm setting my aperture the blades wontwon't change. I can only set to 3f/3.5 fstop and 20 fstopf/20, and when I keep trying to change it my camera will give me error 01. So iI clean the lens contacts and when iI try again, my lens makes a noise and error 01. please help idk. I don't know what to do...