50xR Oil NIS Plan Achromat Microscope Objective for EXC-500/Nikon

This 50xR oil immersion NIS plan achromat objective is designed for Accu-Scope EXC-500 series microscopes and is also compatible with Nikon E200, E400, E600, Ci, and 50/55i series microscopes. It features M25 threads, a spring-loaded bottom lens to protect both the objective and specimen, and is corrected for No. 1-1/2 coverglass. The objective has a numerical aperture of 0.95 and a working distance of 0.19 mm. It provides a flat, infinity-corrected field of view. This objective is backed by a 5-year manufacturer's warranty.