Originally posted by clackers No one caters for APS-C lenses more than Pentax!
While there are lots of APS-C lenses available in K-mount and there are even more APS-C lenses available for other mounts.
Looking at Adorama, I see they offer 143 lenses in Fuji X-mount. They offer a total of 140 lenses in K-mount but that includes FF and APS-C together. We can keep that 140 number since FF lenses will work just fine on APS-C. While those numbers sound good they begin to pale when compared to the 152 Sony E (APS-C) and 229 Sony FE (FF) lenses which when combined offer 381 lenses. But even that pales to the 529 offered for Nikon and the 613 offered for Canon.
Ok, ok ... I know that number game is pretty silly and it's a bit of a stunt but it does show the extent of support.