People new to SLR and DSLR photography can be taken aback by the seemingly high price of lenses. It can be difficult to appreciate the cost of designing and producing a piece of equipment that, from the outside at least, seems rather simple. LensRentals has published a teardown article for the new Canon EF 35 mm f/1.4 II lens that helps give an idea of the engineering efforts that go into making a lens.