Voigtlander Extension Tube for microscope

Extension tube for microscope

1959 - 127/34 - Extension tube for microscope.
consisting of a tube with a semi-transparent miror (127/34)
and a connecting head for microscope (127/33).
This accessory could be directly fitted on a Prominent
but needed a ring to be fitted on a Bessamatic/Ultramatic :
- 145/22 ring for lenses with a 40.5 mm filter
- 145/23 ring for lenses with a 54 mm filter.

Extension tube and connecting head fitted together on a Prominent.