Oumefar 4X Compound Microscope Standard Plan Achromatic Objectives Lens 185 Conjugate Distance 160 0.17 with Copper Mirror Body

【PRODUCT SPECIFICATION】:This is a 4X achromatic objective lens for biological microscope, Tube Length: 160mm / 6.3inch, Conjugate Distance: 185 , Cover-glass Thickness: 0.17mm, Objective Lens Length: 30.5mm, Size: 20mm（Standard RMS Thread), Item Size: 5 * 5 * 5cm / 2.0 * 2.0 * 2.0inch 【PRODUCT DESCRIPTION】:Infinity plan objective lens adopts copper lens body, nickel-plated Aluminum Alloy shell is precision machined, stable and for long time use 【PRODUCT FEATURES】:Because this plan achromatic objective lens is a parallel light path, there is no included angle to correct the spherical aberration and sink difference 【EXCELLENT PERFORMANCE 】:This achromatic compound microscope objective lens can eliminate unwanted reflections and increase contrast. It offers high quality observation without additional chromatic aberration, image more clear 【NOTE】:At low magnification, the aperture is relatively large, the image will be brighter, and the field of view will be larger; high magnification objectives, the magnification ability is significantly enhanced, but the field of view and brightness are reduced, and you need to be patient when focusing and finding the target