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:
The new adapters are already listed for sale on Amazon Japan for ¥ 22,730 (around $160).
International buyers can purchase the adapter on eBay.
Additional information is available here and here:
New: Leica M rangefinder camera adapter for 50mm M42 and Pentax K lenses
Via PentaxRumors
