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.
