Farpoint Bahtinov Focus Mask for Celestron 9.25" SCT with Fastar or Hyperstar # FP415H sold2024 EXP GDC Beast External HDMI

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Farpoint Bahtinov Focus Mask for Celestron 9.25" SCT with Fastar or Hyperstar # FP415H sold2024 EXP GDC Beast External HDMIFarpoint Bahtinov Focus Mask for Celestron 9. 25" SCT with Fastar or Hyperstar # FP415H Farpoint Bahtinov Masks Are one of the best tools for manually focusing your telescope available to astrophotographers. In 2005, Pavel Bahtinov, a Russian amateur telescope maker and astronomer detailed a new way to easily focus your DSLR, CMOS or CCD camera for astrophotography by adding a mask that matches the diameter of your telescope. Bahtinov mask are a less