Chroma Luminance Filter - 2″ Mounted

Luminance filter from Chroma Technology

Visit Luminance filter from Chroma Technology is a high-precision optical filter designed for astronomical imaging. It is specially designed to capture luminance data in astrophotography, enhancing image sharpness and detail while complementing RGB filter sets.

Key features

• Spectral transmission :
  • Transmission range: 418 nm to 697 nm, effectively blocking UV and IR.
  • High transmission in the visible spectrum, guaranteeing optimal capture of details.
• Coating type :
  • Sputtered hard coatings for exceptional durability.
  • Anti-reflective coatings on the rear face to prevent glare and maximize transmission.
• Optical quality :
  • Surface polished to an accuracy of λ/4 or better.
  • Parallelism: <30 arcsec, guaranteeing optimum image quality.
• Thickness :
  • Thickness: 3 mm ± 0.05 mm, compatible with most filter wheels and drawers.
• Available formats :
  • Mounted: 1.25", 2".
  • Unmounted: Customized formats (31 mm, 36 mm, etc.).

Applications

• Monochrome astrophotography with CCD/CMOS cameras :
  • Capture luminance data to improve the detail and clarity of images combined with RGB.
• Deep sky imaging :
  • Ideal for capturing high-resolution galaxies, nebulae and star clusters.
• Reduced optical artifacts :
  • Blocks UV and IR to prevent chromatic aberration in refractive optical systems.

Technical advantages

• Effective UV/IR blocking :
  • Improves image sharpness by eliminating unwanted wavelengths outside the visible spectrum.
• Outstanding durability :
  • Coatings resistant to temperature and humidity variations guarantee long-term spectral stability.
• Universal compatibility :
  • Works with all modern monochrome cameras and integrates easily into existing configurations.

Conclusion

Visit Chroma Luminance filter is an essential tool for advanced astrophotography. Complementing the RGB filters, it captures sharp, detailed images while effectively blocking UV and IR. Its robust design and optical performance make it an essential choice for demanding astrophotographers.