This is a used Nikon 20X magnification microscope objective lens designed for both brightfield and darkfield Differential Interference Contrast (DIC) microscopy. The 210 mm tube length and 0.4 numerical aperture are key specifications for compatible research microscopes. With free shipping offered, this component is suitable for laboratory technicians, researchers, or educators looking to repair, upgrade, or expand their imaging capabilities. As a used item, its condition should be verified for optical cleanliness and mechanical function. This objective is ideal for detailed specimen analysis where contrast enhancement is needed. Since specific dimensions and exact cosmetic condition are not provided, please check the listing for full details and compatibility information before purchasing. Nikon 20X Brightfield/Darkfield DIC 210 objective, 0.4 NA. Condition: Used, Made in Japan. Listed at 125.00 USD. The Nikon Brightfield/Darkfield DIC objective lens has a numerical aperture of .40, making it ideal for Metellurgical microscopy. Made in Japan, this high-quality microscope part from Nikon is designed specifically for metallurgical applications. With a magnification of 20X, this 210mm objective lens offers crisp and clear images for detailed observation and analysis in various bf/df/dic settings.(200X with 10X eyepieces) In excellent condition . Optical design also ensures a wide field of view and excellent image quality, making it a reliable and valuable accessory for microscopes.