ITEM NAME:40X Achromatic Objective Lens for Biological Microscope 185 Objective Lens V1E4 40X Achromatic Objective Lens for Biological Microscope 185 Objective Lens V1E4 Aluminum Alloy shell is precision machined, stable and durable for long time use This is a 40X achromatic objective lens for biological microscope It can eliminate unwanted reflections and increase contrastOffers high quality observation without additional chromatic aberration, make image more clear Name:Achromatic Objective Lens Magnification: 40X Conjugate Distance: 185mm Suit Microscope: Biological Microscope Colour:Photo Color Material:metal Package Contents: 1*40X Achromatic Objective Lens