Fully functional

Light to normal signs of use may be present. These do not affect functionality.

Functional

Visible signs of use or slight play in the mechanism may be present.

Suitable for collectors or repair enthusiasts

Fungus is present in the lens system and may affect image quality. The mechanism is intact.

Limited functionality

The aperture mechanism is faulty or blocked. All other functions are intact.

Not functional

Suitable for spare parts or decoration. May have technical defects, fungus, haze, scratches, or a combination of these issues.