Optolong UV-IR Cut 1.25" Mounted Filter

The Optolong UV-IR Cut 1.25" Mounted Filter enhances the sharpness and contrast of your astrophotography images by blocking unwanted ultraviolet and infrared light. Ideal for users of color cameras without built-in UV/IR blocking, this broadband filter allows only visible light to pass, significantly reducing star halos and chromatic aberration.

Designed to be highly versatile, the filter is especially effective for imaging galaxies, star clusters, and reflection nebulae. With its precise optical coatings and edge-to-edge clarity, this filter ensures tighter, sharper stars and enhanced detail even in light-polluted environments. Its durable metal housing and German Schott B260 glass construction offer professional-grade quality for any imaging setup.

• Filter Type: UV/IR Cut (Luminance)
• Size: 31.75mm (1.25")
• Filter Shape: Round
• Insert Style: Threaded
• Optical Thickness: 2 mm
• Clear Aperture: 26 mm
• Blocked Wavelengths:
  • Ultraviolet: 300–400 nm
  • Infrared: 700–1100 nm
• Transmission: High in visible spectrum
• Material: Schott B260 glass (Germany)
• Coatings: Multi-layer anti-reflective (Ion-assisted)
• Surface Quality: 60/40
• Mount: CNC-machined, black anodized aluminum

• Optolong 1.25" UV-IR Cut Filter
• Filter Case