The Pentax K2 is a 35mm SLR introduced by Asahi Optical in the mid-1970s as part of the Pentax K-mount line that replaced the long-running M42 screw-mount system. The black-finish version sat at the upper end of the K-series range when new.

Sales data for the black Pentax K2 is extremely thin, with a single UK auction hammer result on file at £35 (wholesale, before commission). On that limited evidence the K2 sells for modest sums today in 2026, though one data point is not enough to set a reliable price band, and clean, fully working bodies typically command more than untested examples.