Description Description Unit has a damaged zoom knob and is missing its back plate. Unit functions as intended Eyepiece tubes measure 30mm in diameter by 90mm deep Head zoom magnification from 0.6x to 6.6x Zeiss head part number: 45 50 56 Zeiss objective part number: Achromat S 1.0x, 45 50 60 Objective specs: f=100mm, WD=90mm, R=3.9um View AllClose
