A long way back a friend of mine had an EM with the full line of of lens, E series, 28, 35, 50 and 100, all were very sharp and the 100 2.8 was especially fine, the E series glass is very fine indeed
Currently loaded: Leica IIIc. IIIg and Bronica ERTS.
Glass currently in regular use: Voigtlander 15mm 4.5 Helliar
Soon to arrive Leica MDa