High Precision Tri-Bahtinov Mask: Focus and Collimation Tool

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.  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 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   This product is NOT a medical device.