Rob Haan

G.L. Optics did a pretty great job rehousing Leica Rs for PL. http://www.glcinemod.com/english.html The 19mm only has about a 90 degree focus rotation, but the rest of the set is quite user friendly. Like Stuart said, they're as sharp as you'd expect Leica's to be. Quite higher contrast in comparison to S4's, and have a deep yellow hue.