Fast Pentax Takumar 135mm f/2.5 in K-mount, better portrait bokeh than f/3.5 alternatives at budget pricing.
The Pentax Takumar 135mm f/2.5 Bayonet is a fast portrait telephoto in Pentax K-mount with the quality Takumar heritage. The f/2.5 is notably faster than the common f/3.5 135mm lenses, providing better bokeh and brighter viewfinder for precise telephoto manual focusing.
The fast f/2.5 creates noticeably more background blur than f/3.5 alternatives at the 135mm portrait perspective. The Takumar heritage ensures quality optics with warm colour rendering, and the K-mount bayonet provides faster lens changes than M42 screw alternatives.
Build quality is quality Pentax K-mount with all-metal construction and smooth focusing. The K-mount Takumar designation indicates the transition-era lens carrying the Takumar name into the bayonet mount system.
The Takumar 135mm f/2.5 K-mount offers fast portrait telephoto at affordable used pricing. The f/2.5 speed advantage provides genuine practical improvement over slower 135mm alternatives for portrait photography.