Olympus MPlan 20x BD Brightfield/Darkfield Metallurgical Microscope Objective

The Olympus MPlan 20x BD microscope objective lens is designed for use with metallurgical microscopes in brightfield and darkfield illumination. Featuring a numerical aperture (NA) of 0.40 and an infinity-corrected optical system compatible with standard 0 optical tube length, this M26 threaded objective (Part No. 1-UN225) ensures high-resolution imaging with precise contrast enhancement. The lens optics are maintained in good condition with a functional spring mechanism facilitating smooth mounting and alignment. This objective is essential for metallurgical analysis, materials science research, and biomedical engineering applications requiring detailed surface and structural imaging. Its brightfield and darkfield modalities make it widely suited for fluorescence analysis and synthetic biology workflows where contrast differentiation is critical. Compatible with various Olympus microscopes, it supports advanced optical investigations important for biopharmaceutical production pipelines and molecular diagnostics development.