I like the creativeness - the best of the 3 is your #5. Although it will take a while to figure it is a lens of a camera. The combo tire / lens is a bit too busy - but it was smart to put the white wall lettering on the tire's side wall with the company title.
#30 - thanks for putting up another logo joop - I think you're trying to make that an "i" with the lens right? The lens seem odd over in that upper right corner ...