Magnification Drum from Older Black Stereo Microscope

Description

Magnification Drum from Older Black Stereo Microscope

This is a complete magnification changing drum assembly from one of the earlier black Zeiss stereo microscopes (c. 1960’s). Each side of the microscope has its own set of lenses. The drum has six positions. Two positions opposite each other are open, and when either of these positions are selected the native magnification of the microscope is obtained (16x, when using 10x oculars). The other four positions have pairs of lenses that augment the magnification when oriented in one direction, and decrement the magnification in the opposite orientation. The magnifications possible with the instrument were 6x, 10x, 16x, 25x, and 40x.

These lenses in these drums are very prone to delamination and can seriously degrade the performance of the microscope. The lenses in these drums are in excellent condition. None of the elements appear to have any delamination problems. This is a scarce resource for restoring one of these vintage instruments.

Photo set 1906

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***MPN
***OEM Zeiss
***SKU*** 30111