Eyepiece with 39mm focal length

Symmetrical eyepiece, focal length 39mm

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Symmetrical eyepiece, focal length 39mm
Science Museum Group
© The Board of Trustees of the Science Museum

Symmetrical eyepiece, focal length 39mm, field of view 53 degrees weight 130g, in brass mount with R.A.S. screw thread, secondhand condition, (E.22 in catalogue)

Details

Category:
Optics
Object Number:
1980-534
type:
eyepiece
credit:
English, H.W.