Olympus Dplan10X microscope objective. The objective is primarily intended to be used on the 160mm tube length Olympus microscopes such as the CH2, BH2, BHS, BHTU, IMT2, CK and Vanox 160mm TL microscopes. Each objective pictured has been tested and found to be optically perfect and as can be seen the cosmetic condition varies. It has an NA of 0.25 and requires requires the use of a coverslip of 0.17mm thickness. These objectives work perfectly well with other makers 160mm TL microscopes from Zeiss, Letiz and Nikon. THE SALE IS FOR ONE EACH. Thank You For Looking!