1.25" UHC Filter for Astronomical Photography Professional Broadband Filter

Our 1.25" UHC (Ultra High Contrast) filter is designed to enhance the visibility of emission nebulae, such as the Orion Nebula and the Veil Nebula, by selectively transmitting light in the wavelengths emitted by ionized hydrogen and oxygen atoms. Product Features: * Enhanced Contrast: Specifically designed to improve the contrast of emission nebulae, making them stand out against the background sky. * Broadband Transmission: Passes a wide range of wavelengths, including the H-beta (486nm) and OIII (501nm) lines, to ensure a complete view of the emission nebula. * Reduced Light Pollution: Blocks out unwanted light pollution, particularly from artificial sources like streetlights and city lights, to provide a clearer and more detailed view of celestial objects. * Precision Optical Glass: Constructed with high-quality optical glass that ensures sharp and clear images, free from distortion and color aberration. * Multi-Layer Coatings: Features multiple layers of anti-reflection coatings to maximize light transmission and minimize unwanted reflections. * Easy Installation: Fits standard 1.25" astronomical eyepieces and accessories, making it convenient to use with various telescopes. * Durable Construction: Made from durable materials to withstand the rigors of outdoor use and frequent handling. * Available Color Options: Offered in different color options, including red and blue, to suit personal preferences and telescope compatibility. Specifications: * Filter Type: Ultra High Contrast (UHC) * Size: 1.25" * Transmission Range: H-beta (486nm) & OIII (501nm) * Blocking Range: Light pollution from artificial sources * Material: Precision Optical Glass * Coatings: Multi-layer anti-reflection coatings Key Usage Points: * Ideal for observing emission nebulae * Enhances contrast and visibility of celestial objects * Reduces light pollution for improved观测ing conditions * Compatible with standard 1.25" astronomical eyepieces * Durable and easy to install Additional Features: * Includes a protective case for safe storage and transport * Backed by a comprehensive warranty for peace of mind * Recommended for use with telescopes with apertures of 4" or larger *

UHC Filters for Astronomy - Astronomy.com

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UHC Filter - Cloudy Nights