Kinoptik Paris Apochromat C Mount 25mm f/1.2 Lens As-Is Fixed Focus

Kinoptik Paris Apochromat C Mount 25mm f/1.2 Lens As-Is Fixed Focus

The Kinoptik Paris Apochromat is a rare French-made C mount cine and machine vision lens with a 25mm focal length and a fast f/1.2 maximum aperture. The glass elements are clear and free of scratches, mold, and fungus. This example is being sold as-is for parts or repair: the focus ring has been set to infinity by a previous user and is now seized in that position, making it effectively a fixed-focus lens at infinity unless the focus mechanism is serviced by a qualified technician.

Specifications & What's Included

• Brand: Kinoptik, Paris — Made in France
• Lens design: Apochromat (apochromatic — corrected for chromatic aberration across three wavelengths)
• Focal length: 25mm
• Maximum aperture: f/1.2
• Image circle / format coverage: 1/2 inch
• Mount: C Mount (standard 1-inch, 32 TPI thread)
• Aperture ring: engraved f/1.2 through f/16 scale, visible and functional
• Focus ring: engraved distance scale — currently seized at infinity
• Glass condition: clear, no scratches, mold, or fungus observed
• Serial number: N°36336 (engraved on rear element ring)
• Known defect: focus mechanism seized at infinity — sold as-is for parts or repair only
• Included: lens only — no front/rear caps, case, or accessories confirmed

Applications

Kinoptik was a prestigious French optical manufacturer based in Paris, producing high-performance cine, aerial, and scientific lenses from the mid-20th century onward. Their Apochromat series lenses were designed for applications where chromatic aberration correction was critical — including 16mm cinema, scientific imaging, and early machine vision and industrial inspection systems. The C mount was and remains a standard interface for 16mm film cameras, industrial cameras, machine vision systems, and scientific imaging equipment. A 25mm focal length on a 1/2-inch format sensor provides a moderate field of view suitable for general-purpose machine vision, document scanning, and close-range imaging applications. Kinoptik lenses are collected today by cinematographers, lens technicians, and vintage optics enthusiasts for their optical quality and French provenance. With servicing of the focus mechanism, this lens could potentially be restored to full functionality.