Bahtinov Mask Tair-3 300 mm f/4.5 Achieve absolute optical perfection and pinpoint star focus with these custom-engineered Bahtinov masks. Designed explicitly for the Tair-3 300 mm f/4.5 Because guessing your infinity focus in the dark is a game for amateurs, not physicists. 🔭 Key Features Perfect Fit: Tolerances optimized for secure attachment without scratching your optics. Calculated Diffraction: Grid spacing mathematically calibrated for optimal diffraction spike visibility at these specific focal lengths. Lightweight & Durable: Slim profile for easy storage in your astrophotography kit. 🌌 How to Use Attach the appropriate mask to the front of your lens. Point your camera at a bright, prominent star. Switch to live view and adjust your focus ring until the central diffraction spike perfectly bisects the "X" pattern. Remove the mask before starting your exposure sequence. 🔗 Resources & Acknowledgements Mask Generator: The precise geometry for these models was calculated using the exceptional tool . The Physics: Want to understand the optical diffraction principles behind this brilliant focusing tool? Read the Bahtinov mask Wikipedia page . Stock Image source: here Clear skies and perfectly sharp focus! Boost Me If you like my models, please consider boosting!

Bahtinov mask for Tair-3 300 mm f/4.5

by FP_physicist · original on MakerWorld ↗

♥ 1⬇ 1🖨 0 prints

Print profiles

• 0.2mm layer, 2 walls, 15% infill

  ⏱ 28m · 9 g · 1 material(s)

  Prints on: P2S 0.4, H2D Pro 0.4, A2L 0.4, P1S 0.4, H2S 0.4, H2D 0.4, A1 mini 0.4, H2C 0.4, X1 Carbon 0.4, X2D 0.4, P1P 0.4, X1 0.4, X1E 0.4, A1 0.4PETG

  Not in stock