Originally posted by j0n4hpk Well... Pentax does have K mount small lenses that can be used in a K mount rangefinder body, such as the 40mm, 35mm and maybe 77mm and 31mm FA and D-FA ones. But as others state, it's doubtful that Ricoh will try a rangefinder. Now, a penta-mirror smaller DSLR body may be something else.
If that's the case, toss a rangefinder on a K-01 and there you go. Those lenses require the 45.46 flange to sensor depth, meaning the body has to be at least 50-60mm deep.
If anyone is going to make a viable rangefinder, the flange distance needs to be shorter, much shorter, in the 20mm range.
Consequently, the present K lenses wont work without some sort of adapter, and this negates the mirrorless rangefinder concept of a more compact body.
Having said that, the Fuji X-Pro bodies are anything but petite, though they are quite thin.