Struggling to get that perfect focus? A Bahtinov mask might be your new best friend. This focusing aid fits over your telescope’s aperture and creates distinctive diffraction spikes around bright stars.
When your telescope is out of focus, the spikes appear uneven. Adjust your focus until the central spike is perfectly centered between the others—this indicates razor-sharp focus.
Why Use a Bahtinov Mask?
- Quick and visual focusing feedback.
- Works well for both beginners and pros.
- Affordable and easy to use.
You can buy one commercially or even make your own with a precise template. Combine it with your usual focusing routine or software for unbeatable accuracy.
