Achieve perfect focus with this custom 3D printed Bahtinov mask (39.5mm) designed specifically for ZWO 30mm F/4 guidescopes.

Features:

• Designed to fit ZWO 30mm F/4 guidescopes
• Inner diameter of approximately 39.5mm for accurate fit
• Items will be shipped in black by default; however, if you prefer another color, simply drop me a message, and I'll be happy to accommodate your preference
• Custom sizes available upon request; please message me for a custom option

The Bahtinov mask consists of three separate grids strategically positioned to create three angled diffraction spikes at the focal plane, aligning with each bright image element. As you adjust the focus of your ZWO 30mm F/4 guidescopes, the central spike moves across the star from one side to the other, enabling precise focusing.

Ensure your astrophotography sessions with the ZWO 30mm F/4 guidescopes are optimized for perfect focus using this custom Bahtinov mask. If you have any questions or need further assistance, please don't hesitate to send me a message.