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BTOER 160mm Objective Lens for Biological Microscopes 4X to 100X Magnification

<ul><li>[OBJECTIVE LENS SET] This set includes a range of magnifications 4X, , 20X, 40X, 60X, and 100X, suitable for various microscopic applications.</li><li>[PROTECTIVE SPRING LOADING] The spring-loaded mechanism on the 40x, 60x, and 100x objectives protects your slides from potential damage during examination.</li><li>[OPTIMIZED FOR ] Coated optical parts provide enhanced visibility and minimized distortion, clear imaging in all conditions.</li><li>[ADVANCED NUMERICAL APERTURE] Featuring a unique design in the 100x objective that utilizes pine pitch for improved performance in high-resolution imaging.</li><li>[SIZING REMINDER] for Ensure you check your own size specifications rather than relying solely on standard charts.</li></ul>

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Features:*Suitable for infinity-corrected optical systems used with 160mm focal length tubes, such as biological microscopes.*Standard DIN 45mm focal length with coated optical parts.*40x, 60x, 100x objectives are spring loaded to prevent slide damage.*The 100x objective is equipped with pine pitch to achieve the design of numerical aperture.*Corrected for chromatic aberration, spherical aberration, and paraxial coma in two bands.Specifications:Part Name:Objective LensMaterial:Precision copper coreSize:As shownColor:BlackMagnification: 4X//20X/40X/60X/100X&nbsp;Mounting size: 20.2mm&nbsp;Tube length: 160mm&nbsp;4X: Numerical aperture () 0.1; Working distance 18mm&nbsp;: Numerical aperture () 0.25; Working distance 7mm&nbsp;20x: Numerical aperture () 0.4; Working distance 0.55mm&nbsp;40X: Numerical aperture () 0.65;&nbsp;60X: Numerical aperture () 0.85; Working distance 0.18mm&nbsp;100X: numerical aperture () 1.25; working distance 0.13 mmPackage Content:1*Objective LensNote:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.