Classic Pentax K mount 135mm f/2.8 manual-focus telephoto with SMC coating.
The Pentax SMC 135mm f/2.8 is a manual-focus telephoto prime for Pentax K mount, offering a classic portrait and telephoto focal length with a fast f/2.8 aperture. The SMC coating delivers the excellent contrast and flare resistance that defines Pentax's optical quality across their manual-focus lens range.
Optical quality is good with sharp performance and pleasant rendering at the 135mm focal length. The f/2.8 aperture provides effective subject isolation for portrait photography and telephoto work. The SMC multi-coating produces clean, contrasty images with accurate colour that Pentax optics are consistently known for.
Build quality is solid metal construction with the smooth focus ring and positive aperture click stops that characterise Pentax K mount manual-focus lenses. The lens is compact for a 135mm f/2.8 and balances well on Pentax bodies. The K mount ensures compatibility with all Pentax K mount cameras, film and digital.
On the used market, the Pentax SMC 135mm f/2.8 MF offers quality telephoto capability for the K mount system at very modest prices. For Pentax users wanting a classic portrait telephoto or adapted mirrorless shooters exploring affordable vintage glass, it delivers excellent value with genuine Pentax optical quality.