OK, but as an example look at the Samyang 14mm 2.8, FAR, FAR cheaper than the Canon 14mm 2.8L but optically as good as if not better in most areas of performance, and here in the UK is only 20% of the cost of the Canon L! The Samyang tilt shift by comparison is 60% of the cost of the Canon 24mm tilt shift in the UK at present and optically inferior by some margin, so subjective value is much lower with this lens than Samyang's 14mm.