Collection: 2 Inch Astrophotography Filters

The Optolong ND Filter 2" (ND3) is an essential accessory for astronomers and astrophotographers who need to manage brightness without altering the color balance of their observations. This neutral density filter is designed to uniformly reduce the intensity of all wavelengths of light, preserving the true color of celestial objects.

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.

This adjustable filter allows you to fine-tune the level of light transmission, providing optimal viewing and imaging conditions for bright objects such as the Moon, Venus, and other planets. Crafted with high-quality materials and featuring advanced design elements, the Optolong Variable Polarizer Filter ensures superior performance, making it a must-have for any serious stargazer or astrophotography enthusiast.

For astrophotographers and astronomers who demand the highest quality in their observations and imaging, the Optolong 2" UV/IR Cut Filter is a vital tool. This filter is specifically designed to block ultraviolet (UV) and infrared (IR) light, which can cause significant image distortions and degrade the quality of your photos.

For astrophotographers and astronomers who often find themselves battling light pollution, the Optolong CLS 2" Light Pollution Filter is a game-changer. This filter is specifically designed to selectively reduce the transmission of light pollutants, such as those emitted by mercury vapor lamps, sodium vapor lights, and even unwanted natural light caused by skyglow.

It offers 0.1% transmission of the major emission lines of artificial light pollution, such as mercury (Hg) at 435.8nm, 546.1nm, 577nm, and 578.1nm, and sodium (Na) at 589nm, 589.6nm, 615.4nm, and 616.1nm.

The filter substrate is fine-optically polished to 1/4 wave with less than 30 parallelism over both surfaces. This ensures minimal light scatter and superior image clarity. Complying with the MIL-O-13830 standard, the filter boasts a surface quality of 60/40, which translates to exceptional durability and performance.

Reducing atmospheric distortions and enhancing surface detail and contrast for planets like Jupiter, Saturn, and Mars. Lunar Imaging: Providing sharper and more detailed views of the Moon’s surface. Enhancing the quality and detail of IR-LRGB images by blocking unwanted wavelengths and allowing only IR light to pass.

The Askar Color Magic C1 C2 Duo-Band Filter 2" is a cutting-edge tool for astrophotographers and amateur astronomers seeking to capture high-quality deep-sky images. Designed to effectively combat light pollution, this filter set brings out the detailed features of celestial objects that are otherwise difficult to capture. With the Color Magic C duo-band filters, you can achieve excellent imaging performance, even in urban areas with significant light pollution.

For astronomers and astrophotographers dedicated to capturing the stunning beauty of nebulae, the Optolong H-Beta Filter 2" 25nm is an essential tool. This narrowband filter is specifically designed to isolate the H-beta emission line at 486nm, allowing for enhanced contrast and visibility of nebulae against the night sky. Whether you are observing the faint Horsehead Nebula or the expansive California Nebula, this filter will significantly improve your viewing experience by reducing the impact of artificial light pollution and skyglow.

The Askar Duo-Band Narrowband Filter 2" / 1.25" is a revolutionary accessory for astrophotographers seeking to capture the intricate beauty of deep-sky objects. Designed with two passbands, this filter isolates the H-alpha and OIII emission lines, making it an excellent choice for imaging emission nebulae, planetary nebulae, and supernova remnants.

The ZWO 2" Duo-Band Dual Narrowband Filter 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.

Its ability to isolate specific wavelengths of light and reduce the impact of light pollution makes it an essential tool for capturing stunning images of H-alpha emitting nebulae and other deep-sky objects. The filter's high transmission rate and fine-optical polishing ensure superior performance, providing clear and detailed views of the night sky.

The filter allows only a 7nm bandwidth of light centered at 500.7nm, effectively blocking unwanted light pollution and night glow. Offers a transmission rate of up to 90% at the OIII line, ensuring bright and clear images. Superior Optical Quality: Finely polished to maintain an accurate wavefront, ensuring minimal distortion and high-quality imaging.

The Askar SII Narrowband (7nm) Filter is an essential accessory for astrophotographers and astronomers who aim to capture the detailed beauty of SII (Sulfur II) emitting nebulae and supernova remnants. Available in sizes of 2", 1.25", 36mm, and 31mm, this filter isolates the SII emission line at 671.6nm, providing exceptional clarity and contrast. Whether you are imaging in light-polluted urban environments or under pristine dark skies, the Askar SII filter will enhance your astro-imaging capabilities, revealing the subtle details of the cosmos.

Essential for creating detailed SHO (Hubble Palette) images, enhancing the visibility of different elements within nebulae. Enhances contrast and detail in wide-field images when used with CCD or CMOS cameras.

Transform your astronomical observations and astrophotography with the Optolong H-Alpha 7nm Filter. Order now to enjoy clear, high-contrast images of nebulae and other celestial objects, capturing the beauty of the universe in unprecedented detail. Click the link below to add this essential tool to your collection today.

Astrophotography enthusiasts, meet your next essential tool: the Optolong OIII Narrowband 6.5nm Filter, available in both 2" and 1.25" sizes. This high-quality filter is designed to isolate the Oxygen III (OIII) emission line at 500nm, drastically reducing the impact of light pollution and enhancing the contrast and details of your deep-sky images.

The Optolong SII Narrowband 6.5nm Filter is a high-performance astronomical filter designed to enhance deep-sky imaging. Available in both 2" and 1.25" sizes, this filter is specifically engineered to isolate the Sulfur II (SII) emission line at 672nm. By drastically reducing other transmissions, including those responsible for light pollution, this filter allows astrophotographers to capture stunning, high-contrast images of nebulae and other celestial objects.

Isolates key emission lines (H-Beta, OIII, H-Alpha, SII) for improved color balance and detail in nebulae, galaxies, and other deep-sky objects. Cuts out unwanted light pollution from mercury and sodium lamps, providing a clean and broadband image with minimal color cast.

Investing in the Optolong L-Pro Light Pollution Broadband Filter 2" means achieving professional-grade astrophotography results. Its superior construction, light pollution suppression capabilities, and compatibility with a wide range of equipment make it an invaluable tool for capturing the beauty of the night sky in vivid detail.

Astrophotographers and astronomy enthusiasts looking for an advanced solution to combat light pollution while capturing the beauty of the night sky need look no further than the Antlia Triband RGB Ultra Filter - 2" Mounted. This exceptional filter is engineered to provide superior performance for both OSC (One-Shot Color) and monochrome cameras, making it a versatile tool for various astrophotography applications. Designed to capture over 90% of deep-sky objects, the Triband RGB Ultra Filter excels in capturing emission nebulae, galaxies, reflection nebulae, and star clusters, from highly ligh

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 LRGB 2 Inch Filter Set Kit is a vital accessory for any astrophotographer or astronomer seeking to capture stunning, high-contrast images of the night sky. This set of four filters—Luminance (L), Red (R), Green (G), and Blue (B)—is meticulously designed to separate the light spectrum into its primary components, allowing for detailed and accurate color representation in your astrophotography. With these filters, you can achieve exceptional image quality, making it easier to photograph deep-sky objects and planetary details.