Carl Zeiss Jena Flektogon 50mm f/4

Carl Zeiss Jena Flektogon 50mm f/4 | S/N: 9852487

Carl Zeiss Jena Flektogon 50mm f/4 Manual Focus Medium Format Wide-Angle Prime Lens - Good Condition | Iconic East German Architecture Featuring Ultra-Wide 6x6 Frame Geometry, Generous Bellows Travel, and Native Pentacon Six Bayonet Mount

Introductory Paragraph The Carl Zeiss Jena Flektogon 50mm f/4 is a legendary, professional-tier medium format wide-angle manual focus prime lens masterfully engineered by Carl Zeiss Jena in East Germany (DDR). Highly celebrated for its advanced inverted-telephoto retrofocus architecture, it was custom-built to illuminate the massive 6x6cm square film negatives of legendary medium format SLR platforms like the Pentacon Six, Praktisix, and Kiev 60 systems. Featuring an ultra-wide angle of view (~76 degrees diagonally) that translates roughly to a sweeping 28mm wide-angle equivalent perspective on standard full-frame sensors, this highly scannable Carl Zeiss Jena lens yields breathtaking sharpness, minimal straight-line optical distortion, and spectacular edge-to-edge rendering separation. It stands out as an exceptionally satisfying, ruggedly constructed tool for fine-art landscape photographers, architectural documentarians, and digital medium format or mirrorless format adaptors seeking a signature retro drawing character.

Key Features

• Advanced 7-element in 4-groups retrofocus optical layout, mitigating wide-angle edge distortion to deliver straight, highly corrected lines across massive medium-format frames.

• Sweeping 50mm wide-angle medium format perspective field, compressing immense landscapes and grand architectural structures into highly detailed master compositions.

• Native heavy-duty Pentacon Six (P6) steel breech-lock mount system, providing rock-steady physical docking alignment onto vintage SLR chassis or modern digital system adapters.

• Incredible 0.5-meter extreme close-focusing distance boundary, allowing close-up macro foreground indexing combined with expansive, sweeping background perspective context.

• Robust all-metal industrial barrel housing craftsmanship, featuring deep, tactile ribbed control surfaces designed to perform consistently in demanding field conditions.

• Fully automatic mechanical aperture actuator pin network, letting the camera body maintain wide-open framing brightness until the split-second the shutter trips.

• Generous oversized glass elements and deep image circle projection, making it a prime candidate for tilt-shift adaptive configurations on smaller digital sensor arrays.

Condition Report Good condition. Body: Standard light use, showing typical minor cosmetic paint scuffs on the anodized black aluminum barrel exterior and slight handling rub lines along the raised focus ring ridges. The metal mounts are clean and seat with strict precision. Sensor/Optics: Lens elements are bright and clear. The internal optical path is completely free from internal fungus, heavy haze, optical separation, or deep glass scratches. Note: The inner lens barrels show minor, typical vintage "schneideritis" (superficial micro-flecking of the black internal anti-reflective paint layer), which is entirely normal for this era and has absolutely zero impact on image contrast or final exposure clarity. Mechanics/Electronics: Fully operational. The massive manual focus ring turns evenly through its comprehensive 300-degree throw with a nicely dampened mechanical resistance, the manual aperture selector clicks decisively into every detent, the rear automatic linkage mechanism responds snappily, and the internal aperture blades are completely dry and oil-free.

Specialist Note "The Flektogon 50mm f/4 is a monumental lens in the evolution of wide-angle vintage optics. Before this retrofocus marvel arrived, medium format wide lenses were notoriously soft at the edges and prone to severe vignetting. Zeiss solved it beautifully here, crafting a lens that resolves crisp, professional detail across the entire 6x6 square format. What makes it extra exciting today is its massive image circle; because it was built to cover a huge piece of film, you can adapt it onto a full-frame or crop-sensor digital mirrorless body and utilize the absolute sweet spot of the glass. Using a simple shift adapter turns this vintage workhorse into a highly precise, budget-friendly architectural shift lens that delivers gorgeous micro-contrast and deep, rich East German color rendering. It is a completely transparent, deeply satisfying piece of vintage glass to operate."

What's Included

• Carl Zeiss Jena Flektogon 50mm f/4 Wide-Angle Prime Lens (S/N: 9852487)

• Front Protective Lens Cap

• Rear Pentacon Six Mount Protective Dust Cap
  

Technical Specifications

• Brand: Carl Zeiss Jena (DDR)

• Model: Flektogon 50mm f/4

• Lens Type: Wide-Angle Lens

• Lens Mount: Pentacon Six (P6) / Kiev 60 Mount

• Focal Length: 50mm (Equivalent to ~28mm on 35mm Full-Frame Format)

• Maximum Aperture: f/4.0

• Minimum Aperture: f/22

• Minimum Focus Distance: 0.5m (1.6 feet)

• Optical Construction: 7 Elements in 4 Groups

• Focus Type: Manual Focus Only

• Category: 2. Lenses ▸ Wide-Angle Lens

• Battery Type: None Required (Fully Mechanical)