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Nikon 10x Plan Achromat Objective Lens 688713044513 | eBay
High Quality Metallurgical Microscope Infinity Plan Objective Lens for Nikon 10X CFI-60 FL - AliExpress
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10X Infinity-Corrected Plan Long Working Distance Achromatic Metallurgical Microscope Objective Lens Working Distance 17.7mm | Boli Optics Microscope Store
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The Wickedly Sharp Nikon 10X CFI Objective For Photomacrography