Manufacturer: Carl Zeiss Jena Model: Flektogon 50mm f/4 Mount: Pentacon Six (P6) Country: DDR (East Germany) Serial Number: 9567121 Focal Length: 50mm Maximum Aperture: f/4 Weight: approx. 600g This is the classic ultra-wide medium format lens from Carl Zeiss Jena, originally designed for Pentacon Six / Kiev 60 / Exakta 66 systems. Known for its wide coverage, sharpness in the center, and characteristic vintage rendering. Popular for digital mirrorless use via adapters. ⸻ CONDITION • Optics: Shows internal dust and micro-particles. No deep scratches on the glass. There are visible signs consistent with age. • No visible separation. • Aperture blades move, diaphragm opens and closes. • Focusing ring moves, but the external barrel shows clear usage wear and paint loss (visible in photos). • Rear mount clean and functional. This lens is fully functional, but cosmetically well-used. Please check all photos carefully — they form part of the description. ⸻ INCLUDED • Lens only (no caps / no hood)