Farpoint FP402 Bahtinov Focus Mask for Telescopes with Dew Shield or Tube Diameter from 5.5" to 8.5"

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About Farpoint FP402

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 FP402 Features

  • Bahtinov focus mask for medium telescopes
  • Fits telescopes with Dew Shield or Tube Diameter from 5.5" to 8.5"

Farpoint FP402 Reviews

Reviewed by 2 customers


Solid construction


from eastern NC  -  Casual/ Recreational

I had one of these for my 5 inch SCT, and this was equally built as well. I like a thick plastic product because it is built to last unlike a DIY type mask. I would recommend these to anyone


Farpoint FP402 Bahtinov Focus Mask


from San Antonio, TX  -  Casual/ Recreational

I used it on my 6 inch Astro Tech RC Astrograph. Really worked well on a bright star. Very important to also do another check on a dimmer star for better focus.


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Questions about this item:

Shopper  Will this mask work well with a celestron 8i telescope?
ERNEST A  The adjustment screws don't work well for me. Need to attach with painters tape or something. I think they also sell one just for 8 inch SC scopes.
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