19:14 0 + Canon files patent application for barndoor-style lens cap that you can't lose02:37patents 0 + Canon Files Patent for New EF 300mm f2.8L IS Lens
19:54 0 + Sony patents 400mm F2.8 lens for a curved medium format sensor00:30 0 + Tamron files patent for 115mm F1.4 VC lens