This is a weird question but I recently bought the E-M10 and when I unscrewed the cap to put on the lens, I noticed immediately that the mirror looked slanted. Now I'm a newbie to mirrorless camera matters but I've never seen something like that before (I have a Panasonic GM1 and this is not the case). So the question is, is this normal? Or should I request for an exchange asap? I increased the exposure to make the mirror visible (and both cameras were propped on the same table to make sure that everything was leveled).