Mamiya-Sekor CS 135mm f/2.8 - Good Condition | Sharp Vintage Portrait Prime with Built-In Hood

The Mamiya-Sekor CS 135mm f/2.8 (S/N: 31469) is a premium telephoto prime lens designed for the Mamiya NC-series 35mm SLRs. Known for Mamiya’s legendary reputation in medium format optics, this 35mm-format lens brings that same level of contrast and resolution to a more portable scale. The 135mm focal length is widely regarded as the ultimate portrait lens, offering a flattering compression of facial features and a beautiful, creamy background blur (bokeh) that makes subjects stand out. With a fast f/2.8 aperture, it excels in low-light environments and provides excellent depth-of-field control. Featuring a robust all-metal build and a convenient integrated retractable lens hood, this lens is a fantastic choice for both vintage film users and digital photographers who appreciate the character and precision of high-end Japanese glass.

Key Features

• Fast f/2.8 maximum aperture for excellent low-light performance and shallow depth-of-field

• Renowned Mamiya-Sekor multi-coating for superior contrast and flare suppression

• Flattering 135mm telephoto reach, ideal for portraiture, street, and candid photography

• Integrated retractable metal lens hood to quickly block stray light and protect the front element

• Precise manual focus ring with a long, smooth throw for critical sharpness

• Compact and well-balanced all-metal construction for professional durability

• High-quality six-blade diaphragm for natural-looking out-of-focus highlights

Technical Specifications

• Camera Type: Lenses

• Lens Mount: Mamiya CS (Bayonet)

• Focal Length: 135mm

• Aperture Range: f/2.8 - f/22

• Category: Lenses ▸ Prime Lens

• Filter Size: 52mm

Specialist Note "The Mamiya-Sekor CS 135mm (S/N: 31469) is a lens that truly surprises people. Most enthusiasts know Mamiya for their professional medium format systems, but their CS series glass for 35mm cameras was built with that same uncompromising philosophy. The f/2.8 version is particularly sweet—it has a 'bite' to the sharpness that is rare in vintage telephotos. What I love about this lens is how it handles light; the transitions from the in-focus area to the bokeh are incredibly smooth, giving your photos a high-end, professional look. It’s a joy to use on modern mirrorless cameras with an adapter, as the tactile feedback of the focus ring is exceptionally precise."

Condition Report Good condition. The lens barrel (S/N: 31469) 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 ring operates smoothly and is well-dampened. The aperture blades are clean, oil-free, and snappy. The built-in retractable lens hood operates correctly and holds its position.

What's Included

• Mamiya-Sekor CS 135mm f/2.8 Lens (S/N: 31469)

• Case