Farpoint Carey Focus Mask - Celestron 11 ClassicFarpoint Carey Focus Mask Celestron 11 Classic is an ingenious new way to easily focus a telescope. For use with Celestron 11" Classic SCT telescopes without Hyperstar or Fastar. Farpoint Carey Focus Mask Celestron 11 Classic Farpoint Carey Focus Mask Celestron 11 Classic is an ingenious new way to easily focus a telescope. George Carey, an amateur telescope maker and astronomer from the UK, published a modification of previous focus mask designs to