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Objective
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2X Plan Metallurgical Objective
2X Plan Metallurgical Objective


Infinity Plan  achromatic  f ′ = 200mm (Tube lens) long working distance objective lens, focusing distance 60mm

无限远平场消色差(Plan ) f′=200mm(镜筒管镜)长工作距离物镜, 齐焦距离60mm