A new Shoten R50 Leica M rangefinder camera adapter for 50mm M42 and Pentax K lenses was introduced in Japan. Two different versions are available: M42-LM R50 for M42 mount PK-LM R50 for Pentax K-mount (not compatible with DA lenses) The new adapters are already listed for sale on Amazon Japan for ¥ 22,730 (around $160). … Continue reading Just announced: new Leica M rangefinder camera adapter for 50mm M42 and Pentax K lenses