9.8 mm Long Working Distance. Primarily for Nikon Optiphot microscope models. Also usable with similar scopes. From Leitz, Leica, Olympus and Zeiss.
With large BD threads or adapters. The item "Nikon BD Plan 40x ELWD Long Working Distance 210 TL Dry Microscope Objective" is in sale since Sunday, September 16, 2018.This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Microscope Parts & Accessories\Microscope Objectives". The seller is "josedm1" and is located in Yakima, Washington. This item can be shipped worldwide.