光学元件标识升级公告
无限远矫正光学系统
复消色差设计，全视场范围内波像差优于衍射极限
支持与各大物镜生产商的无限远矫正物镜配合使用
无限远矫正设计
200 mm与400 mm两种焦距可选
增透膜在紫外、可见光和近红外波段都有高透过率
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