Carl Zeiss Jena “Sonnenglas” eyepiece solar filter

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Carl Zeiss Jena “Sonnenglas” eyepiece solar filter.

Original vintage Zeiss accessory designed to screw onto Zeiss astro eyepieces.

Good cosmetic condition with clean original finish.

Sold strictly as a historical collector’s item only and not recommended for direct solar observation according to modern safety standards.

Price: 95 € plus shipping