The Omegon Pro 254/1016 is a powerful light-bucket for deep-sky imaging. However, its fast f/4 ratio comes with a challenge: an extremely narrow critical focus zone. To achieve razor-sharp stars, standard "eye-balling" isn't enough. Our bespoke Tri-Bahtinov mask allows you to lock in your focus and verify your collimation with surgical precision.

Why Tri-Bahtinov is Essential for Fast Newtonians

On a 10-inch f/4 Newtonian, collimation can often shift slightly as the tube moves across the sky. The Tri-Bahtinov design generates three distinct sets of diffraction spikes. By ensuring these spikes cross exactly at the center, you can diagnose collimation errors in real-time without even removing your camera.

The Azur3Dprint "Cap" format ensures automatic centering every time, unlike universal masks that often sag or tilt, leading to inaccurate readings.

Technical Specifications

• Material: High-density UV-resistant Black PETG.
• Compatibility: Exclusive fit for Omegon Pro Newtonian 254/1016.
• Safety: Integrated soft felt lining included as standard.
• Workflow: Compatible with SharpCap, FireCapture, and ASIAIR autofocus/collimation tools.