Zeiss Optovar 1.6x Magnification Changer for AxioVert 200 Observer D1 Z1

Carl Zeiss OPMI 9 Optical Head, magnification changer, F=160 binoculars

Zeiss Optovar Magnification Changer Universal/Photomicroscope with Filter slider

Zeiss 45 19 03 Optovar Magnification Changer Axiotron Axiotech 1.25x 1.6x 2.0x

Zeiss 45 14 90 AxioPlan Axioskop Optovar Magnification Changer [1x, 1.25x, 1.6x]

Zeiss Optovar Magnification Changer for AxioPlan (fits Axioskop) Microscope

Carl Zeiss Axiovert 135M Inverted Microscope Base with Turret

Zeiss Microscope Universal Photomicroscope Optovar Magnification Changer