Gaertner M239 20x Ramsden Modular

This is the highest magnification ocular available for the Gaertner modular measuring microscope line. Gaertner oculars are smaller in diameter than normal microscope eyepieces (49/64ths as opposed to 23.2mm). The part number is M239, and it has the following characteristics.

Magnification � 20x
Equivalent focal length � 12mm
Field diameter � 10mm
Must be used with eyepiece tube adapter M250-239

The eyepiece is in excellent cosmetic condition and perfect optical condition.

Photo set 2073
***MPN M239
***OEM Gaertner Scientific
***SKU*** 32265