Vintage GOMZ Ortagoz 1:4.5 F=13.5cm Anastigmat Lens with Central Shutter and Original Mounting Flange for Fotokor-1 Camera - Fully Serviced & Working

This is a rare opportunity to own a legendary Soviet large-format camera component in pristine functional condition. Up for sale is a vintage GOMZ Ortagoz 1:4.5 F=13.5cm four-lens anastigmat lens, integrated with its original GOMZ central leaf shutter and the highly sought-after original mounting flange ring. This optical assembly was originally designed for the iconic Soviet 9x12 cm folding plate camera "Fotokor-1", manufactured in Leningrad between 1930 and 1941. The assembly has undergone complete professional maintenance and preventative servicing. It is fully ready for active photographic use on large format setups, custom adaptation to modern mirrorless cameras, or as a prized museum-grade piece in a classic camera collection.
Condition Excellent working and cosmetic condition. The unit has been professionally serviced and calibrated. The shutter fires accurately across all available speeds (1/25, 1/50, 1/100, K, and D). The aperture and shutter blades are completely clean, entirely free of oil, grease, or residue, and operate smoothly without any lag or sticking. The glass elements are clear and free from deep scratches or fungus, with only minor internal dust consistent with its historical age. The original mounting flange is included and threads flawlessly onto the rear assembly.
Specifications - Brand: GOMZ (State Optical-Mechanical Factory, Leningrad, USSR)
- Lens Model: Ortagoz (Four-element unglued anastigmat)
- Focal Length: 13.5 cm (135mm)
- Maximum Aperture: 1:4.5 (Aperture scale: 4.5, 6.3, 9, 12.5, 18, 25, 36)
- Shutter Type: GOMZ Central Leaf Shutter (Vario type variant)
- Shutter Speeds: 25, 50, 100, K (B / Bulb), D (T / Time)
- Format Coverage: Large Format 9x12 cm
- Included Accessories: Original rear mounting flange ring
- Country of Manufacture: USSR (Soviet Union)

International Air Mail Shipping with tracking number
ITEM # 11816