Objective lens,4x 185 Biological Microscope Achromatic Objectives Lens, Aluminum Alloy Magnifier Lens

SPECIFICATION : ❶Name ❶ Achromatic Lens ❷Material: Aluminum Alloy + Optical Lens ❸Magnification: 4x ❹Tube Length: 160mm ❺Conjugate Distance: 185 ❻Cover Glass Thickness: 0.17mm ❼Objective Lens Length: 30.5mm ❽Mounting Size: 20mm (Standard Size: 20mm -Thread) HIGH QUALITY :Provides high quality observation with no additional chromatic aberration and makes the picture clearer. EASY TO USE :The length of the lens is 30.5mm, easy to use. MATERIAL : Aluminum alloy shell is precision machined, stable and for long-term use. APPLICATION :This is a 4X achromatic objective lens for a biological microscope. It can remove unwanted reflections and increase contrast.