Considering the lenses people seem to want to wish for (faster, weathersealed), I propose that the following list of lenses would be profitable for, say, Olympus. There are several lenses on the list that I would buy, knowing that the cost would not be inconsequential. The primes pretty much evenly cover the range of angles in a linear fashion (6mm = 143º, 10mm=122º, 16mm=97º, 25mm=72º, 45mm=44º, 100mm=20º, 300mm=7º). Primes: 300mm f/4 weather-sealed 100mm f/2.8 weather-sealed, macro(?) 45mm f/2.0 weather-sealed, macro(?) 25mm f/2.0 weather-sealed 16mm f/2.0 weather-sealed 10mm f/2.8 pancake 6mm f/2.8 Zooms: 12-60mm f/2.8-4.0, weather-sealed 6-12mm f/2.8 See anything you'd like?