Pentax's vintage M42 telephoto — manual-focus 200mm f/4 with classic Takumar optics.
The Pentax Takumar 200mm f/4 is a manual-focus telephoto prime for M42 screw mount, produced from approximately 1965 (Super-Takumar, single-layer coating) through the early 1970s (SMC Takumar, multi-coating). Five elements in 5 groups. Six aperture blades. 58mm filter thread. At approximately 560g. 2.5m MFD.
Five elements in 5 groups. Six aperture blades. The 58mm filter thread. At approximately 560g. Minimum focus distance of 2.5m. Manual focus only — preset or auto aperture operation depending on variant. M42 screw mount. Full-frame coverage.
The Super-Takumar 200mm f/4 (1965) and SMC Takumar 200mm f/4 (1971+) share the same five-element optical design — the designation difference reflects coating generation: Super-Takumar uses single-layer coating while SMC Takumar uses Super-Multi-Coating for improved flare and contrast performance. Both variants use M42 screw mount and the same 58mm filter thread.
On the used market the Pentax Takumar 200mm f/4 is affordable as a vintage M42 manual telephoto prime. Condition checks: aperture blade oil contamination (common in pre-SMC variants), focus helicoid smoothness, 58mm front element for marks. M42 screw mount adapts to most modern mirrorless and DSLR bodies via M42-mount adapters.