Farpoint Bahtinov Focus Mask (Celestron C8 HyperStar/Fastar SCTs)

BH #FAFP410H • MFR #FP410H
Farpoint
Farpoint Bahtinov Focus Mask (Celestron C8 HyperStar/Fastar SCTs)
Key Features
  • Use for All Astrophotography Techniques
  • Enables Fast Tack-Sharp Focusing
  • Made of Durable ABS Plastic
Designed by Russian amateur telescope maker and astronomer Pavel Bahtinov, the Farpoint Bahtinov Focus Mask can be used to quickly and easily focus your telescope for all types of astrophotography with DSLRs or imaging systems. Made of durable ABS plastic, the mask is designed specifically for Celestron C8 Schmidt-Cassegrain telescopes (SCTs) with HyperStar/Fastar lenses, and simply fits into the dew shield or objective retaining ring. It takes the guesswork out of focusing on astronomical objects and ensures tack-sharp views of stars, planets, and just about any other celestial subject you want to photograph or image.

Farpoint Bahtinov Overview

Designed by Russian amateur telescope maker and astronomer Pavel Bahtinov, the Farpoint Bahtinov Focus Mask can be used to quickly and easily focus your telescope for all types of astrophotography with DSLRs or imaging systems. Made of durable ABS plastic, the mask is designed specifically for Celestron C8 Schmidt-Cassegrain telescopes (SCTs) with HyperStar/Fastar lenses, and simply fits into the dew shield or objective retaining ring. It takes the guesswork out of focusing on astronomical objects and ensures tack-sharp views of stars, planets, and just about any other celestial subject you want to photograph or image.

UPC: 022099907169

Farpoint Bahtinov Specs

Packaging Info
Package Weight0.12 lb
Box Dimensions (LxWxH)8.6 x 8.55 x 0.25"

Farpoint Bahtinov Reviews

it works as intended

By Eric
Rated 5 out of 5
Date: 2021-08-24

Does a great job. Easy to use and allows my camera to focus perfectly.

Too big

By Andres
Rated 2 out of 5
Date: 2020-09-14

This is my second Bahtinov focus mask. The previous one was for a C6. Perfect fit. This one not so much. The smaller circle that goes over the secondary mirror is too large. There are two variations for the C8. One for the regular C8, and this one for the C8 HD - or so it’s what I read. The one for the regular C8 is too small and it would not fit the C8 Edge HD. On this one I had to improvise by adding an overlay to cover the gap. I sent an e-mail to the vendor asking this question and never got a reply. Other than this, it appears to work.

Solid, simple, easy to use....

By James
Rated 5 out of 5
Date: 2020-07-15

....though to be honest, there's not too much that can go wrong with a Bahtinov mask, as long as the angled grooves are congruent, it'll work.

Just perfect

By Josh
Rated 5 out of 5
Date: 2021-08-16

This mask actually fit my Celestron Nexstar 8se! I had tried a few others but they were either to big or to small. It really helped me get better results in my deep sky astrophotography with much clearer images!

It's easy to use and it works

By Mark
Rated 5 out of 5
Date: 2021-07-26

Just like advertised, mount to the front of your telescope and locate a bright star The focus is easily adjusted so the diffraction pattern is just right so that when you remove the mask your stars are as sharp as can be. The cables from the camera have to be removed to put the mask on, but from there, it does the trick.

Pretty much what you expect

By Wesley
Rated 5 out of 5
Date: 2020-10-03

It is what it is. Showed up in one piece, hasn't cracked on me. It is what I expected.

must have

By Matt
Rated 5 out of 5
Date: 2020-09-16

this bahtinov mask is a MUST have if you are doing astrophotography. it enables you to get exact focus with the scope. does its job very well. buy with confidence.

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question

Does it work for Edge Hd celestron 8 Evo, thanks
Asked by: Peng X.
Yes this is the correct mask for your scope.
Answered by: Dan
Date published: 2019-09-26

What is the interior hole's diameter? My ...

What is the interior hole's diameter? My Celestron 8" EdgeHD description does not say HyperStar or Fastar, so that doesn't help. The hole's actual diameter would be more useful, since I can measure that. (Its center mirror mount is about 70mm, and my old Celestar 8" is about 65mm)
Asked by: David
No, that will fit. There is one made for the older 8" Classic Celestron Schmidt-Cassegrain telescopes (SCTs) Farpoint Bahtinov Focus Mask (Classic Celestron 8" SCTs) BH #FAFP410 • MFR #FP410 https://bhpho.to/33mqVhh
Answered by: Robert
Date published: 2020-10-02

Work on the old c8.1994

Work on the old c8.1994
Asked by: Charles
The Farpoint rep said the mask for "classic Celestron 8" SCTs" (B&H #FAFP410) is a bit better for the old Celestar 8" SCTs (like my "other" scope), but that this one will work adequately for older *or* newer Celestron 8" SCTs. The secondary mirror mounts on the old scopes are about 65mm, and the newer ones are about 70mm, so this mask will leave a bit of extra space around the secondary mirror mount, but they say it should still work. I'm ordering one of these. If I remember, I'll update this answer once I have a chance to try it out on both of my 8" Celestron SCTs.
Answered by: David
Date published: 2020-09-30

Is this the right mask for the Advanced VX 8" ...

Is this the right mask for the Advanced VX 8" Schmidt-Cassegrain Telescope?
Asked by: Eric
Yes it is the right mask.
Answered by: John
Date published: 2020-11-03

What is the interior hole's diameter?

What is the interior hole's diameter?
Asked by: Mark
70mm or roughly 2 3/4 inch.
Answered by: Peter
Date published: 2021-03-08
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