Levelling plate set for Axio Scope.A1 tubes for Multidis central section.

Adaptation set for tubes Axio Scope.A1 on center comp. multidisc. Set of compensation plates, to be inserted instead of the tube lens of Axio Scope.A1 tubes/photo tubes for the main observer only, consisting of threaded mount including - glass plate, fixed - glass plate, exchangeable - attenuation filter, loosely supplied. Attenuation filter can be used instead of exchangeable glass plate for brightness compensation between main observer and several co-observers.