Next to the Canon 85mm f1.2L, the Leica-R 90mm f2 Summicron is one of my favourites. The smooth operation of the lens has no equal, and I find the bokeh to be exquisite. Truly one of the best investments I have made, not in terms of return on investment, but return in joy. The best thing is, with proper care, many more decades of joy from this beautiful lens.
Bumped - Canon 5D Mark II & Leica Summicron-R 90mm f2 @ f2
Maximum 40 - Canon 5D Mark II & Leica Summicron-R 90mm f2 @ f2