不時有Celestron折反射鏡客戶跌壞了或弄歪了光軸要送回來更換零件、清潔及重新調校至完美光學狀態，大部份情況可以處理，例如這台C6裝好後便要用600倍檢視埃里盤及衍射環，不過還是要花點時間精力。

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.