"Does anyone know of a great 40-45mm ltm lens?"
Hi Richard -- Pentax made a limited edition 43mm f/1.9 in Leica thread mount as well as for the Pentax K bayonet. Only 2000 of these were made; 800 silver finish and 1200 black, so I understand, so they're not terribly common. They're also not particularly compact, the optics having been designed for an SLR's backfocus. This is a very fine lens, though I detect a hint of barrel distortion.
Hi Richard -- Pentax made a limited edition 43mm f/1.9 in Leica thread mount as well as for the Pentax K bayonet. Only 2000 of these were made; 800 silver finish and 1200 black, so I understand, so they're not terribly common. They're also not particularly compact, the optics having been designed for an SLR's backfocus. This is a very fine lens, though I detect a hint of barrel distortion.