Erfle eyepiece (catalogue no. E59) focal length 15.5mm

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Erfle eyepiece (catalogue no. E59) focal length 15
Science Museum Group
© The Board of Trustees of the Science Museum

Erfle eyepiece (catalogue no. E59) focal length 15.5mm, field of view 68 degrees, weight 1oz, bloomed

Details

Category:: Optics

Object Number:: 1980-537

type:: eyepiece

credit:: English, H.W.

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Erfle eyepiece (catalogue no. E59) focal length 15.5mm

Details

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