Carl Zeiss Jena DDR Flektogon 50mm f/4 Lens – P6 Mount – Ultra Wide Medium Format

Description:

Rare Carl Zeiss Jena Flektogon 50mm f/4 lens with Pentacon Six (P6) mount. A legendary ultra-wide-angle lens designed for 6×6 medium format photography. This example is in excellent condition, with clean optics, smooth focus, and snappy aperture blades. Ideal for landscape, architecture, and dramatic wide-angle compositions.

Originally introduced in 1960, this lens was the widest rectilinear lens produced by Carl Zeiss Jena for the Pentacon Six system. It features a robust all-metal construction, precise manual focus, and a classic Zeiss rendering with excellent edge-to-edge sharpness on medium format.

Key Features:

• Focal Length: 50mm (≈28mm equivalent on 35mm format)
• Maximum Aperture: f/4
• Mount: Pentacon Six (P6)
• Optical Design: 7 elements in 4 groups
• Minimum Focus Distance: 0.5m
• Focus Throw: 300° for precise manual control
• Aperture Blades: 8 (rounded for smooth bokeh)
• Filter Thread: 87mm
• Weight: Approx. 630g
• Build: All-metal body with anodized aluminum rear section (violet tint in some lighting)
• Aperture Control: Manual with click stops from f/4 to f/22
• Production Era: 1960–1990 (this variant ≈1966–1990)

Included:

• Carl Zeiss Jena Flektogon 50mm f/4 lens
• Front and rear caps
• Optional: P6 to Mamiya 645 or Canon EF adapter (available separately)

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Collector Notes:

This lens was recomputed in 1966 for more efficient production, and most surviving examples are of this later design. All versions are mildly radioactive, with earlier models showing higher levels. The Flektogon 50mm f/4 is prized for its sharpness, minimal distortion, and historical significance in East German optical engineering.