Collection: Products

The Optolong H-Beta 25nm Filter 1.25" is a powerful tool for any astronomer or astrophotographer looking to reduce the effects of light pollution and improve the visibility of faint nebulae. With high transmission rates, advanced coating technology, and durable construction, this filter ensures that you can capture stunning, high-contrast images of the night sky with ease.

The Optolong IR Pass 685nm Filter 1.25" is a powerful tool for astronomers and astrophotographers aiming to capture high-contrast, detailed images of the Moon and planets. This filter is specifically designed to block wavelengths below 670nm, allowing only infrared light to pass through. By doing so, it enhances contrast and surface detail while reducing the effects of atmospheric distortion, making it an invaluable addition to your astronomical equipment.

Transform your astronomical observations and astrophotography with the Optolong IR Pass 685nm Filter 2". Order now to enjoy clear, high-contrast images of the night sky and capture the beauty of celestial objects with unprecedented detail. Click the link below to add this essential tool to your collection today.

The Optolong L-eNhance Light Pollution Filter 1.25" is an essential tool for anyone serious about astronomical observation and astrophotography. Its ability to isolate specific wavelengths and reduce light pollution impact makes it invaluable for capturing stunning images of deep-sky objects.

This filter is designed for imaging and is not suitable for visual observation. It is specifically crafted to improve deep-sky imaging by isolating key emission lines and reducing light pollution. For best results, use this filter with a camera setup that is sensitive to the wavelengths it isolates.

The Optolong L-eXtreme 7nm Dual-Band Narrowband Light Pollution Filter is a powerful tool for any astronomer or astrophotographer looking to capture high-contrast, detailed images of the night sky. With its advanced coating technology, high transmission rates, and durable construction, this filter ensures that you can achieve stunning results in a variety of imaging scenarios.

The Optolong L-Extreme Dual-Band Filter 2" Inch is an essential tool for anyone serious about astronomical observation and astrophotography. Its ability to isolate specific wavelengths and reduce light pollution impact makes it invaluable for capturing stunning images of deep-sky objects.

Captures specific wavelengths at 500.7 nm (OIII) and 656.28 nm (H-alpha) with a Full Width at Half Maximum (FWHM) of 7 nm.

The Optolong L-Extreme Light Pollution Filter 1.25" is an innovative dual-band pass filter specifically designed for astrophotographers who use DSLR, color CMOS, and monochrome CCD cameras. This advanced filter effectively isolates the H-alpha and Oxygen III (OIII) nebula emission lines, making it an essential tool for capturing high-contrast, detailed images of deep-sky objects even in light-polluted environments.

The Optolong L-Pro 77mm Filter is the ultimate tool for astrophotographers and astronomers who want to capture the beauty of the cosmos with enhanced contrast and clarity. Its advanced design, high-quality materials, and rigorous testing ensure that you receive a filter that performs flawlessly, providing you with the best possible results in your astronomical observations and astrophotography.

The Optolong L-Pro Filter is specifically designed to improve the quality of astrophotography and visual observation by filtering out unwanted wavelengths emitted by urban lighting. It excels in enhancing the visibility of ionized hydrogen regions and other emission nebulae without altering the natural colors of the cosmos.

This filter is designed for imaging and is not suitable for visual observation. It is specifically crafted to improve deep-sky imaging by isolating key emission lines and reducing light pollution. For best results, use this filter with a camera setup that is sensitive to the wavelengths it isolates.

This filter is designed for imaging and is not suitable for visual observation. It is specifically crafted to improve deep-sky imaging by isolating key emission lines and reducing light pollution. For best results, use this filter with a camera setup that is sensitive to the wavelengths it isolates.

The Optolong L-Ultimate Dual-3nm Filter is a powerful tool for any astronomer or astrophotographer looking to capture high-contrast, detailed images of the night sky. With its advanced coating technology, high transmission rates, and durable construction, this filter ensures that you can achieve stunning results in a variety of imaging scenarios. Whether you’re observing from a suburban backyard or a light-polluted urban environment, the L-Ultimate filter will help you see the universe in greater detail than ever before.

Each filter in the set boasts a 95% transmission rate at the passband, ensuring high efficiency and natural color imaging. The filters are designed to block out the primary Sodium (Na) light pollution line at 589nm, improving color balance and separation.

Take your astronomical observations and astrophotography to new heights with the Optolong LRGB Filter Set Kit 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 set of filters to your collection today.

Achieve high-contrast, detailed views of celestial objects by blocking unwanted light pollution. The filter increases the contrast between celestial objects and the night sky, making faint objects more visible.

The Optolong Moon and Skyglow Filter 2" is an essential tool for anyone serious about astronomy and astrophotography. Its ability to reduce light pollution and improve the visibility of celestial objects makes it invaluable for capturing detailed images of the Moon, galaxies, nebulae, and globular star clusters. With its high-quality construction and advanced features, this filter will significantly improve your stargazing and imaging experience.

The filter has an ND-3.0 rating, providing a 1,000 reduction factor and a transmission of 0.1%. This significantly reduces the brightness of objects without changing their color.

Whether you’re observing from a suburban backyard or a light-polluted urban environment, the Optolong ND3 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 ND3 Filter 1.25" today and start capturing the cosmos with unmatched clarity and precision.

Ready to transform your night sky observations? Order your Optolong OIII 18nm Filter today and see the universe in a new light! Join thousands of satisfied astronomers who have taken their stargazing to the next level. Don't wait—unlock the secrets of the cosmos with precision and clarity!

The Optolong OIII 6.5nm Filter 1.25" is a must-have tool for astronomers and astrophotographers who are serious about capturing the most detailed and clear images of the night sky. Designed specifically for deep-sky observation and imaging, this narrowband filter isolates the Oxygen III (OIII) emission line at 500nm, significantly enhancing the contrast and visibility of celestial objects

The filter guarantees 90% transmission at the critical wavelengths of 495.9nm and 500.7nm, providing clear and vivid images of nebulae. It offers 0.1% transmission at 435nm and 578nm for Hg and at 589nm for Na, effectively cutting out unwanted light pollution.

6.5nm bandwidth centered at 500nm, isolating OIII emissions while blocking out unwanted light. 80% transmission at the 500nm OIII line, ensuring bright and detailed images.