Since 1987, ROC has been fabricating large custom optics for customers worldwide. We specialize in large spherical and aspherical components of all types from 0.25 m up to 1.5 m in diameter.  Our optics can be found on many of the premier astronomical sites around the world.  We also offer fabrication services to the amateur astronomical community, as well as hosting the Center for Amateur Optics where people can come and learn modern fabrication methods and produce their own optics.

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