Farpoint FP401 Bahtinov Focus Mask for Telescopes with Dew Shield or Front End Diameter from 3.5" to 6.5"

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About Farpoint FP401

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.

The Farpoint FP401 is commonly used for Astrophotography and more.The Farpoint FP401 is most used by customers who consider themselves to be a Avid adventurer among others.One reason why the Farpoint FP401 is popular is because of its Easy to use

Summary of Customer Reviews

Customers most agreed on the following attributes:
Easy to use (5)
Best Uses:
Astrophotography (6)
Reviewer Profile:
Avid adventurer (4)

Farpoint FP401 Features

  • Bahtinov focus mask for small to medium telescopes
  • Fits telescopes with dew shield or tube diameter from 3.5" to 6.5" diameter

Farpoint FP401 Reviews

Review Snapshot®


(based on 6 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Farpoint FP401 Bahtinov mask

Needed a focusing mask for my WO 110 ED for DSLR imaging. This product worked perfectly, and the price shipped was a pleasant surprise. Highly recommended!

Reviewed by 6 customers


good deal


from Mesa, AZ  -  Casual/ Recreational

works great


Farpoint FP401 Bahtinov mask


from Jacksonville, FL  -  Avid Adventurer

Needed a focusing mask for my WO 110 ED for DSLR imaging. This product worked perfectly, and the price shipped was a pleasant surprise. Highly recommended!


Bahtinov Focus Mask


from Iowa, La.  -  Casual/ Recreational

Excellent . Work great.


Essential! It will pay for itself fast!


from League City, TX  -  Avid Adventurer

I remember one night I spent four hours trying to get a great photo of a nebula. Through the camera viewfinder it looked like everything was in sharp focus. After coming back inside it turns out that the camera slid slightly in the focuser. It slid just enough to render about 3 hours of time totally wasted! The Farpoint Bahtinov mask is a great way to check your focus and check to make sure your camera did not slip. The time you save will make it well worth the cost. HIGHLY recommended!


Bahtinov Focus Mask for Telescopes


from Buffalo, NY  -  Avid Adventurer

There's no reason to spend more as this mask is well made and durable.


Must have for photography!


from Gaithersburg, MD  -  Avid Adventurer

I use this on an astro-tech 6" Ritchey-Chretien and an astro tech 6" imaging newtonian. This makes it easy (and the cheapest of all the possible ways) to achieve tack-sharp focus.


Questions & Answers Powered by TurnTo®

Questions about this item:

David M  I'm looking at the FP401 Bathinov focus mask. Will this work on my Meade EXT125 Schmidt Cassegrain telescope?
SCOTT B  Yes. It has 3 plastic posts that adjust to the correct diameter to allow it to slide onto the front of the optical tube. It's a loose fit but works fine.
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