Galaxy 500mm f/8 Mirror Lens – T‑Mount Telephoto – Minor Fungus – Good

Overview

The Galaxy 500mm f/8 is a compact catadioptric (mirror) telephoto lens designed for long‑reach photography in a lightweight, affordable package. Using a T‑mount, it can be adapted to a wide range of camera systems.
This example is fully functional but shows minor fungus, noted clearly below.

Condition

Overall Condition: Good (minor fungus)

• Optics show minor fungus (light strands/patches; may reduce contrast in strong light)
• No haze or separation observed
• Focus ring smooth and correctly damped
• Mirror surfaces intact with no coating loss
• Exterior shows moderate cosmetic wear appropriate for age
• Mount clean and undamaged

Included

• Galaxy 500mm f/8 mirror lens
• Rear cap
• Case
• T‑mount adapter 

Key Features

• 500mm fixed‑aperture f/8 mirror lens
• Lightweight catadioptric design
• T‑mount system for wide compatibility
• Manual focus
• Compact for its focal length
• Ideal for wildlife, moon photography and experimental telephoto work

Compatibility

• T‑mount system (requires appropriate adapter for Nikon F, Canon EF, Pentax K, Sony A, etc.)
• Adaptable to mirrorless systems (Z, E, RF, L‑mount etc.) with T‑mount + mirrorless adapter

Collectors Notes

Galaxy‑branded mirror lenses remain popular as affordable long‑reach options. Examples with minor fungus still appeal to users seeking a budget telephoto for occasional or experimental use.

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