or
Invitrogen Olympus 60X Objective, fluorite, 0.90NA/0.2WD, correction collar (0.110.23 mm), For Use With: Imaging, Includes: Vessels, Fluorite, Microscope objectives, 60X Objective, Fluorite, NA 0.90, WD 0.2 mm, Correction Collar (Vessel Thickness 0.11 0.2
