Nikon Plan Fluor 4x/0.13 8/- WD 17.1. 17.1 mm working distance. This is an excellent 4x objective for use on all infinity corrected scopes with 25 mm threads e. Nikon E200, E400, E600, 50i, 55i, 80i, 90i, Ci, and Ni series microscopes. Excellent optical condition and excellent overall.
Any questions, please contact me and I will do my best to answer - and please see my other listings for Nikon microscope objectives. This item is in the category "Business, Office & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Microscope Parts & Accessories\Other Microscope Parts & Accessories". The seller is "anex70" and is located in this country: GB. This item can be shipped worldwide.