Last week I got a cheap eos300 to get me started with photography. I then ordered a canon fd 50mm 1:1.8 prime lense to go with it, yet when it turned up this morning it wont fit onto the camera. Am I just being a complete noob and got an incompatable lense or am I being an equal noob and just not getting it to connect properly? also the aperture in the lense doesnt seem to move when turning the ring, have I just wasted 20 odd quid on a dud lense?