Jump to content

  •  



- - - - -

Zeiss Diadem Old And New



Copyright

Dr. J. Gardavsky

Zeiss Diadem Old And New

The old 3x28 Galilean Diadem, and the new 3.6x12 Abbe-König Diadem






    Cloudy Nights LLC
    Cloudy Nights Sponsor: Astronomics