不时有Celestron折反射镜客户跌坏了或弄歪了光轴要送回来更换零件、清洁及重新调校至完美光学状态，大部份情况可以处理，例如这台C6装好后便要用600倍检视埃里盘及衍射环，不过还是要花点时间精力。

Sometimes, customers with Celestron catadioptric telescopes accidentally drop them or misalign the optical axis, and they need to send them back for part replacement, cleaning, and readjustment to restore them to perfect optical condition. Most of the time, this can be handled, for example, with this C6 telescope, which will need to be viewed at 600x magnification to check the Airy disk and diffraction rings. However, it still takes some time and effort.