High Precision Tri-Bahtinov Focus Tool

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The latest advancement in Bahtinov Technology, the Tri-Baht is the most precise focusing tool on the market today.

If you've ever spent hours trying to connect your camera to your telescope and manually focus on the stars at night, you know the struggle. A bahtinov mask will cut your setup time down to mere minutes with ease.

$16 line diffraction from the tri-baht mask$

The most precise Bahtinov Mask. The Tri-Baht has 16 easy-to-see diffraction spikes for quick focusing.

$example of different styles of diffraction$

Clips to the Exterior of the Telescope

The focus tool clips to the exterior of the telescope, allowing for easy mounting and dismounting, even in the dark. Removing the mask won't bump your polar alignment. Laser-cut, lightweight acrylic material.

Sizes available:

60 - 90 mm
160 - 210 mm
220 - 270 mm
270 - 330 mm

Andromeda Galaxy M31

This product is NOT a medical device.

Diameter

Excellent Tri-Bahtinov Masks

Laser cut and sharp, gives a nice easy to see diffraction pattern, and the adjustable nature makes it a breeze on multiple OTA's. A+

Tri-Baht masks

Very good, manufactured with precision. It meets my expectations!
Must be handled and stored with care.

Good, but not perfect

I was very excited to received the focusing mask the other day. I tried it out that night and all went well. It fit my scope nicely and I like the extra spikes in the pattern. Unfortunately, I left it out on the table next to my scope in my backyard, as I have done with some other black plastic Bahtinov masks that I have used, and it warped quite a bit during the day. That's probably my bad, but I didn't expect it to happen, given my experience with others.

High Precision Tri-Bahtinov Focus Tool

The most precise Bahtinov Mask. The Tri-Baht has 16 easy-to-see diffraction spikes for quick focusing.

Clips to the Exterior of the Telescope

Customer Reviews