Has aquatica changed their ports at all? I was thinking about buying a friends gear for his 20d. I would only want to do it if I could use his ports on an aquatica housing for my 5d ii. Are the ports the same? I know they are bayonet style but I want to make sure they haven't changed in style or quality. He doesn't know the model number for the ports but one is a macro (with adjustment knob) and the other is an 8" dome.