Farpoint FP403 Bahtinov Focus Mask for Telescopes with Dew Shield or Front End Diameter from 6.5" to 9.5"

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About Farpoint FP403

Bahtinov Focus Masks...
• In 2008 an amateur telescope maker and astronomer ppublished an ingenious new way to easily focus your DSLR, webcam or CCD camera for taking astrophotos. The method is simple, very intuitive and the device has universally been named after the inventor. The Bahtinov Mask.

• Farpoint manufactures this *LIFESAVING* astrophotography tool out of virtually indestructable ABS plastic and comes in two major types and in a range of sizes.

• One mask is a general purpose mask designed to fit refractors and newtonian telescope. The other mask is designed to fit Schmidt Cassegrain telescopes. Both types of mask are available in a range of sizes to cover your needs.

Farpoint FP403 Features

  • Bahtinov focus mask for large telescopes
  • Fits telescopes with dew shield or tube diameter from 6.5" to 9.5" diameter

Questions & Answers Powered by TurnTo®

Questions about this item:

Dan K  So this rests on the front of the corrector plate - is it lined with some material to avoid scratching the corrector?
JOSEPH R  The screws that hold the mask in place go through rubber grommets so there is no contact between the mask and the scope. One side of the mask is smooth so even if it did make contact is shouldn't do any harm. The screws do not screw into anything, the just rest gently on the side of the scope to hold the mask in place. I've not found any issues with it at all.
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