The Baader BDSF Digital Solar Filter 180 mm Is a large format solar filter for digital photography of the sun with telescopes or telephoto lenses of approximately 180-210 mm outer diameter. This filter is ideal for serious astrophotographers who want to achieve maximum sharpness and contrast without risk to their equipment.
The BDSF filter film is based on Baader's AstroSolar technology, with a lower transmission specifically tailored to digital sensors. This gives you realistic, neutrally colored solar images with high dynamic range and minimal post-processing.
The sturdy aluminum filter holder features soft clamping feet and ensures a secure fit without pressure on the lens. The flat-tensioned film delivers stress-free, optically clean performance - essential at high resolution and long focal lengths.
Application
For digital solar photography, not suitable for visual observation.
What you can photograph with it:
- Sunspots, faculae and fringe structures
- Fine granules on the solar surface
- Sun activity in realistic color reproduction
Specifications
Type: Solar filter for digital photography
Series: Baader BDSF (Digital Solar Filter)
Filter material: AstroSolar Film - digital transmission
Filter holder: Aluminum with soft clamping feet
Effective opening: 180 mm
Suitable for lens/telescope diameter: approx. 180-210 mm
Color rendering: Neutral white
Use: For photography/video only (not visual)
Safety standard: CE certified, ISO 12312-2







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