L filter (UV/IR Cut) Pegasus - 2″ Mounted

Pegasus Luminance filter (UV/IR cut)

The filter Pegasus Luminance (UV/IR cut) is an essential component for astrophotography, designed to block ultraviolet and infrared wavelengths while improving image sharpness and reducing halos. This high-quality filter features the following technical characteristics:

Technical specifications

• Diameter : 50.8 mm (2 inches)
• Thread : M48 x 0.75 mm
• Total thickness : 7.5 mm (5 mm filter body + 2.5 mm thread)
• Glass thickness : 2 mm
• Transmission range : Tave > 95%, 410-680 nm
• Polishing : 1/4 wavelength
• Coating : Anti-reflective multilayer

Features and benefits

• Optimum transmission : The Pegasus Luminance filter offers exceptional transmission of over 95% in the 410 to 680 nm range, capturing maximum light signal while blocking unwanted UV and IR.
• Parafocality: All Pegasus Astro filters, including Luminance, are parafocal with each other, simplifying the image acquisition process.
• Superior optical quality : With 1/4 wavelength polishing, this filter guarantees excellent image quality and optimum sharpness.
• Anti-reflective coating : The multi-layer anti-reflective coating eliminates halos, ghosting and unwanted reflections, improving contrast and image quality.
• Durability: The filter is designed to resist scratches and temperature changes, ensuring long life and consistent performance.

Astrophotography applications

The filter Pegasus Luminance is particularly useful for :

• Luminance imaging : Captures a broadband image used to add detail and sharpness to an LRGB (Luminance, Red, Green, Blue) composite image.
• Chromatic aberration reduction : By blocking UV and IR, this filter helps minimize chromatic aberrations, particularly useful for uncorrected optical systems.
• Contrast enhancement : Blocking out unwanted wavelengths produces images with greater contrast, highlighting the fine details of celestial objects.
• Planetary and lunar imaging : The UV/IR cut filter is essential for accurate color reproduction when photographing planets and the Moon.

Conclusion

In conclusion, the Pegasus Luminance filter (UV/IR cut) is a versatile, high-performance tool for astrophotography. Offering excellent light transmission while eliminating problematic wavelengths, it is a first-rate choice for demanding astrophotographers.