The Baader AstroSolar Photo Film ND 3.8 20 × 29 cm (Baader Planetarium, SKU: 2459278) is a high-quality optical material designed for solar photography in white light. It is specifically intended for astrophotography at high magnifications and short exposure times, providing excellent image quality. The material achieves a Strehl ratio of 94–96% in interferometric tests, comparable to precision Fluorite Triplet optical systems.

Key features

• telescope-grade solar film for solar photography
• optical density ND 3.8 (OD 3.8) – intended exclusively for photography
• very high optical quality – Strehl ratio 94–96%
• enables operation at high magnifications and short exposure times
• designed for white-light observation (full spectrum)
• intended for advanced users engaged in solar astrophotography
• unmounted film – for custom filter construction
• not suitable for visual observation

Box contents

• Baader AstroSolar Photo Film ND 3.8 sheet, 20 × 29 cm

Technical specifications

• manufacturer: Baader Planetarium
• SKU: 2459278
• EAN: 4047825034595
• type: AstroSolar Photo Film
• optical density: ND 3.8 (OD 3.8)
• observation range: white light
• sheet dimensions: approx. 20 × 29 cm
• weight: 0.05 kg
• mount: none

This product is intended exclusively for solar photography and must not be used for visual observation, as it does not provide eye protection.