Meiji Techno MA981 - Plan Apochromat F20X Objective
N.A. 0.65, F.L. 10.00mm, W.D. 0.7mm
The MA981 is a Plan Apochromat F20X Infinity Objective. It has a parfocal distance of 45mm, a din standard 0.7965" (20.1mm) diameter threads, 36 TPI and 55° Whitworth. This objective is used with the MT6000C series.