KMZ FED 50mm f/3.5 Collapsible Lens – M39 LTM – Soviet – Tested – Clean Optics

Description
The KMZ FED 50mm f/3.5 is a collapsible Soviet rangefinder lens in M39 Leica Thread Mount (LTM), produced in the mid-20th century. Based on the Zeiss Elmar design, it features a compact collapsible barrel, 4-element optical formula, and classic rendering with moderate contrast and vintage character. Compatible with FED, Zorki, and Leica screw-mount cameras, and easily adaptable to digital mirrorless systems.

Condition

• Optics: Clear glass – no haze, fungus or scratches (possible dust)
• Body: Light cosmetic wear consistent with age
• Aperture blades: Snappy and oil-free
• Focus ring: Smooth and accurate
• Collapsible barrel: Locks securely and extends smoothly
• Mount: M39 LTM – clean and secure
• Overall Condition: Very Good

Included

• KMZ FED 50mm f/3.5 collapsible lens (M39 mount)

Collector’s Notes
This lens is a Soviet interpretation of the classic Elmar 50mm f/3.5, offering a compact profile and vintage rendering ideal for travel and street photography. The collapsible design makes it especially pocketable. While not rangefinder-coupled on digital bodies, it adap well to mirrorless systems and delivers a unique aesthetic. A great addition to any Soviet or LTM lens collection.

Key Features

• Focal length: 50mm
• Aperture range: f/3.5 to f/16
• Mount: M39 Leica Thread Mount (LTM)
• Optical formula: 4 elements in 3 groups
• Minimum focus distance: ~1m
• Filter thread: M33.5×0.5mm (approx.)
• Manual focus
• Collapsible barrel design
• Made in USSR

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