Compact Pentax macro prime with exceptional close-range sharpness, affordable 1:2 macro in the tiny M-series form factor.
The Pentax SMC Pentax-M 50mm f/4 Macro is a macro prime for the Pentax K mount from the M (Manual) series — a compact design series from the late 1970s-1980s. Provides close-focus macro capability with standard primes coverage. Pentax K mount.
f/4 maximum aperture. 50mm focal length (full-frame). Macro capability (typically 1:2 reproduction, 1:1 with extension). M-series compact design. Manual focus. At approximately 235g. Pentax K mount.
The Pentax-M 50mm f/4 Macro is part of Pentax's compact M-series from the late 1970s — smaller and lighter than earlier counterparts. The 50mm focal length provides useful close-focus macro capability alongside normal-prime perspective. A practical macro lens for Pentax K cameras.
On the used market the Pentax SMC-M 50mm f/4 Macro is a practical vintage macro prime. Condition checks: front element condition, aperture blades, focus ring smoothness through macro range. Pentax K mount — manual focus. Adapts well to modern Pentax K digital bodies.