Collection: Products

Perfect for capturing detailed images of faint and elusive nebulae, such as the Horsehead Nebula and the California Nebula. Enhances the contrast and visibility of nebulae against the night sky, making them more prominent during visual observation.

Transform your astronomical observations and astrophotography with the Optolong IR Pass 685nm Filter 1.25". Order now to enjoy clear, high-contrast images of the Moon and planets and capture the beauty of these celestial objects with unprecedented detail. Click the link below to add this essential tool to your collection today.

By shifting the imaging spectrum into the infrared range, the Optolong IR Pass filter leverages the sensitivity of CCD and CMOS sensors to IR light, delivering sharper and more detailed images of the Moon and planets.

The Optolong L-eNhance Light Pollution Filter is primarily used for capturing and enhancing images of deep-sky objects such as nebulae, galaxies, and star clusters. By isolating key emission lines and reducing light pollution, it enables astrophotographers to obtain clearer and more detailed images, even in urban and suburban environments.

The Optolong L-Enhance Tri-Band Filter 2" is a revolutionary accessory for astrophotographers seeking to capture the stunning beauty of the night sky with vivid detail and high contrast. Designed specifically for one-shot color and DSLR imaging, this narrowband filter isolates the H-alpha, H-beta, and Oxygen III emission lines, making it an essential tool for those looking to overcome the challenges of light pollution.

Captures specific wavelengths at 500.7nm (OIII) and 656.28nm (H-alpha) with a Full Width at Half Maximum (FWHM) of 7nm. Designed for use with fast focal ratio imaging systems, including RASA, HyperStar, and other systems with focal ratios from f2 to f3.3.

Isolates H-alpha and OIII emission lines, maximizing the contrast and signal-to-noise ratio between nebulae and the sky background. Achieves very high transmission (~90%) at the H-alpha (656nm) and OIII (500nm) lines.

The Optolong L-eXtreme F2 Fast Filter 2 Inch is a revolutionary tool for astronomers and astrophotographers, designed specifically to meet the demanding requirements of fast optical systems. This dual-band narrowband pass filter is engineered to capture the specific wavelengths of light emitted by celestial objects, offering exceptional performance in a variety of imaging setups.

The Optolong L-Extreme Light Pollution Filter is primarily used for capturing and enhancing images of deep-sky objects such as nebulae. By isolating the H-alpha and OIII emission lines, it enables astrophotographers to obtain clearer and more detailed images, even in light-polluted environments.

Say goodbye to unwanted skyglow caused by atmospheric oxygen emissions. Our filter effectively reduces the sky background, allowing you to capture clearer and more detailed images even in light-polluted areas. This feature makes the Optolong L-Pro Filter ideal for urban astrophotography.

The Optolong L-Pro Light Pollution Broadband Filter 1.25" is a must-have accessory for astrophotographers and visual observers who want to capture stunning, high-contrast images of the night sky despite the challenges posed by light pollution. This advanced filter selectively reduces the transmission of wavelengths from common light pollutants, allowing you to see and photograph deep-sky objects with greater clarity and detail.

The Optolong L-Pro Light Pollution Broadband Filter 2" is a high-performance filter designed for serious astrophotographers and astronomers who want to capture stunning images of the night sky despite the challenges posed by light pollution. This filter selectively reduces the transmission of wavelengths from common light pollutants, allowing you to see and photograph deep-sky objects with greater clarity and detail.

The Optolong L-Quad Enhance Filter (L-QEF) 2" is a state-of-the-art quad bandpass light pollution suppression filter designed specifically for astrophotography with color cameras. This advanced filter is engineered to significantly reduce the impact of light pollution, allowing you to capture stunning, high-contrast images of celestial objects with enhanced detail and clarity. Whether you are a seasoned astrophotographer or a beginner, the Optolong L-QEF is an indispensable tool for achieving professional-grade results.

The L-Ultimate isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue), blocking out unwanted light and maximizing the signal from nebulae.

The Optolong LRGB 2 Inch Filter Set Kit is used to improve the quality of astronomical images by separating the light spectrum into its primary components. This allows for detailed and accurate color representation in both deep-sky and planetary imaging. By blocking unwanted light pollution and infrared wavelengths, these filters enhance the visibility of celestial objects and improve the overall image quality.

With these filters, you can achieve natural color imaging with high efficiency, even in areas affected by light pollution. Crafted with advanced materials and precision engineering, the Optolong LRGB Filter Set guarantees superior performance and durability, making it an essential addition to your astronomical toolkit.

Whether you’re observing from a suburban backyard or a light-polluted urban environment, the Optolong Moon & Skyglow filter will help you see the universe in greater detail than ever before. Don't miss out on the opportunity to improve your stargazing and astrophotography experience. Order your Optolong Moon & Skyglow Filter 1.25" today and start capturing the cosmos with unmatched clarity and precision.

By blocking unwanted light at 589nm and other streetlight emissions, this filter allows for a darker background sky, thereby revealing more details and increasing the contrast of the Moon, galaxies, nebulae, and globular star clusters. Whether you are observing visually or photographing the night sky, this filter ensures optimal performance and clarity.

The Optolong ND Filter 2" (ND3) is a powerful tool for any astronomer or astrophotographer looking to reduce the brightness of celestial objects without changing their color balance.

This neutral density filter is specifically designed to reduce the overall brightness of an object without altering its color balance, making it perfect for observing bright planets like Venus, detailed lunar features, and splitting double stars. With its advanced construction and high-quality materials, the Optolong ND3 Filter ensures superior performance, making it an invaluable addition to your astronomical toolkit.

he substrate of the filter is fine-optically polished to 1/4 wave and maintains less than 30 seconds of parallelism across both surfaces, ensuring supreme clarity and focus. Adhering to the stringent MIL-O-13830 standard, the filter boasts a 60/40 surface quality rating, guaranteeing minimal optical imperfections.

Transform your astronomical observations and astrophotography with the Optolong OIII 6.5nm Filter 1.25". Order now to enjoy clear, high-contrast images of the night sky and capture the beauty of deep-sky objects with unprecedented detail. Click the link below to add this essential tool to your collection today.

This filter is specifically designed to improve the visibility of celestial objects, particularly nebulae. By isolating the emission lines of doubly ionized oxygen (OIII), it enhances the contrast of these objects against the night sky, making them more visible through your telescope.

The Optolong OIII Narrowband 6.5nm Filter is an essential tool for astrophotographers and astronomers who want to capture stunning images of the night sky. Its ability to capture specific wavelengths of light and reduce the impact of light pollution makes it invaluable for achieving detailed and high-contrast images of nebulae and other celestial objects.