All lenses are anti-reflection coating Image are sharp and clear. Standard 20.2mm RMS Thread for all microscope. Type: Microscope Achromatic Objective Lens.
Also, the each additional item means. The the same color and size. Transit time may be a little delayed because of the. If you have any questions. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Microscope Parts & Accessories\Microscope Objectives".The seller is "gracekarincollection" and is located in this country: CN. This item can be shipped worldwide.