Pentor Auto 135mm f/2.8

Pentor Auto 135mm f/2.8 - Good Condition | Classic Telephoto Prime with Smooth Bokeh

The Pentor Auto 135mm f/2.8 (S/N: 2144386) is a classic telephoto prime lens from the era of high-quality Japanese third-party manufacturing. Known for its solid, all-metal construction, this lens offers a bright f/2.8 maximum aperture, making it an excellent choice for portraiture and low-light photography. The 135mm focal length provides beautiful background compression and a shallow depth-of-field, allowing your subjects to stand out with professional clarity.Whether you are a vintage film enthusiast or a digital photographer using adapters, the Pentor Auto delivers a nostalgic rendering with natural colors and a tactile, mechanical precision that is a joy to operate.

Key Features

• Fast f/2.8 aperture for beautiful subject separation and low-light shooting

• Versatile 135mm focal length, ideal for portraits, sports, and nature

• Robust all-metal barrel and mount for long-term durability

• Fully manual controls for a classic, hands-on photographic experience

• Multi-coated glass elements designed to improve contrast and reduce flare

• Smooth, dampened focus ring for precise manual adjustments

• Built-in telescoping lens hood to protect against stray light (depending on specific variant)

Technical Specifications

• Camera Type: Lenses

• Lens Mount: M42 Screw Mount (Common for this series; please verify)

• Focal Length: 135mm

• Aperture Range: f/2.8 - f/22

• Category: Lenses ▸ Telephoto Zoom Lens

• Filter Size: 55mm

Specialist Note "The Pentor Auto 135mm f/2.8 (S/N: 2144386) is a fantastic example of a 'sleeper' lens. While it may not carry a famous brand name like Nikon or Canon, its optical performance is surprisingly good. The f/2.8 aperture is sharp in the center and produces a very creamy, 'vintage' bokeh that portrait photographers love. Because it is an 'Auto' version, it features the diaphragm pin for automatic aperture control on compatible film bodies. On a modern mirrorless camera, the long focus throw makes it incredibly easy to hit critical focus. It’s a heavy, substantial piece of glass that feels like a real instrument in your hands."

Condition Report Good condition. The lens barrel (S/N: 2144386) shows normal signs of light use and minor cosmetic surface wear consistent with its age. The optics are clear, free from fungus, haze, or significant scratches. The manual focus mechanism is smooth and well-dampened. The aperture ring clicks firmly at all stops, and the blades are clean and oil-free. Fully tested and operational.

What's Included

• Pentor Auto 135mm f/2.8 Lens (S/N: 2144386)

• Front Lens Cap

• Rear Lens Cap