Collection: 1.25 Inch Astrophotography Filters
Discover our range of 1.25 Inch Astrophotography Filters, perfect for those looking to capture stunning images of the night sky. These filters are engineered to fit standard 1.25-inch eyepieces, offering excellent performance for both amateur and professional astronomers. With advanced coatings to block unwanted wavelengths and enhance specific colors, these filters will help you achieve clearer, more vibrant images of celestial objects. Browse our collection and find the ideal filter to enhance your astrophotography setup.
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Optolong ND3 Filter 1.25"
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.Regular price $45.99 USDRegular priceUnit price / per -
ZWO 850nm IR Pass Filter 1.25"
Passes infrared light with wavelengths over 850nm, enhancing image quality by reducing the effects of atmospheric turbulence. Eliminates the visible spectrum, which is most affected by poor seeing conditions, resulting in clearer images.Regular price $52.00 USDRegular priceUnit price / per -
Optolong Moon & Skyglow Filter 1.25"
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.Regular price $72.00 USDRegular priceUnit price / per -
Optolong Variable Polarizing Filter 1.25"
The variable polarizing filter allows you to set the percentage of light attenuation by simply rotating the top section of the filter, which can turn 360 degrees. This flexibility enables precise control over the brightness of the observed object.Regular price $79.00 USDRegular priceUnit price / per -
Optolong UV/IR Cut Filter 1.25"
The filter boasts impressive transmission rates: 96% at 486nm (H-beta), 95% at 496nm (OIII), 92.5% at 501nm (OIII), and 98% at 656nm (H-alpha). This ensures that key emission lines pass through while blocking unwanted UV and IR light.Regular price $84.00 USDRegular priceUnit price / per -
Optolong CLS Filter 1.25"
The filter provides 95% transmission of main nebula emission lines, including H-alpha (656nm), OIII (496nm and 500nm), SII (672nm), and H-beta (486nm), ensuring bright and clear images.Regular price $95.00 USDRegular priceUnit price / per -
Optolong UHC Light Pollution Filter 1.25"
The filter provides 95% transmission of main nebula emission lines, including H-beta (486nm), OIII (495.9nm and 500.7nm), H-alpha (656nm), and SII (672nm), ensuring bright and clear images.Regular price $95.00 USDRegular priceUnit price / per -
Optolong OIII 18nm Filter 1.25"
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.Regular price $128.00 USDRegular priceUnit price / per -
Optolong IR Pass 685nm Filter 1.25"
The filter offers 95% transmission at the bandpass, allowing maximum infrared light to pass through while blocking unwanted wavelengths. By blocking wavelengths below 670nm, the filter enhances contrast and surface detail, reducing the effects of seeing and atmospheric distortion.Regular price $129.00 USDRegular priceUnit price / per -
ZWO Duo Band Filter 1.25"
The ZWO Duo Band Filter is primarily used for capturing and enhancing images of deep-sky objects such as nebulae. By isolating the Hα and OIII emission lines, it enables astrophotographers to obtain clearer and more detailed images, even in light-polluted environments.Regular price $129.00 USDRegular priceUnit price / per -
Optolong H-Beta 25nm Filter 1.25"
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.Regular price $140.00 USDRegular priceUnit price / per -
ZWO CH4 Methane Filter 20nm 1.25"
The filter features a 20nm bandwidth centered on the methane absorption line at 889nm, isolating this specific wavelength for clearer, more detailed imaging.Regular price $149.80 USDRegular priceUnit price / per -
Optolong L-Pro Light Pollution Broadband Filter 1.25"
The Optolong L-Pro Light Pollution Broadband Filter represents a breakthrough in the field of astrophotography and visual observation under light-polluted skies. Tailored specifically for deep-sky observers and photographers, the L-Pro filter is an essential tool that provides clarity and enhances the visibility of celestial objects by selectively filtering out common light pollutants.Regular price $176.00 USDRegular priceUnit price / per -
ZWO H-Alpha Ha Narrowband Filter 1.25" 7nm
The ZWO H-Alpha Ha Narrowband Filter 1.25" 7nm is primarily used for capturing and observing emission nebulae. By isolating the H-alpha emission line, this filter enables astronomers and astrophotographers to see and photograph structures within nebulae that are often obscured by other wavelengths of light.Regular price $179.00 USDRegular priceUnit price / per -
ZWO OIII Narrowband Filter 1.25" (7nm)
The ZWO OIII Narrowband Filter 1.25" (7nm) 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.Regular price $179.00 USDRegular priceUnit price / per -
ZWO SII Narrowband Filter 1.25" Inch (7nm)
By blocking out unwanted light pollution and skyglow, the ZWO SII Narrowband Filter enhances the visibility of celestial objects, making it an indispensable addition to your astrophotography equipment.Regular price $179.00 USDRegular priceUnit price / per -
Askar Duo-Band Narrowband Filter 2" / 1.25"
The Askar Duo-Band Narrowband Filter is primarily used for capturing and observing emission nebulae, planetary nebulae, and supernova remnants. By isolating the H-alpha and OIII emission lines, this filter enables astronomers and astrophotographers to see and photograph structures within nebulae that are often obscured by other wavelengths of light. This makes it an invaluable tool for anyone conducting detailed studies of these celestial phenomena.Regular price From $189.00 USDRegular priceUnit price / per -
Askar H-Alpha Narrowband (7nm) Ha Filter 2" / 1.25" / 36mm / 31mm
The filter allows only a 7nm bandwidth of light centered at 656.3nm, effectively blocking unwanted light pollution and night glow. Achieves a transmission rate of up to 90% at the H-alpha line, ensuring bright and clear images.Regular price From $199.00 USDRegular priceUnit price / per -
Askar OIII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm
The Askar OIII Narrowband (7nm) Filter is an essential tool for astrophotographers and astronomers who are passionate about capturing the intricate details of OIII emitting nebulae and supernova remnants. Available in sizes of 2", 1.25", 36mm, and 31mm, this filter is designed to isolate the OIII emission line at 500.7nm, providing exceptional contrast and clarity.Regular price From $199.00 USDRegular priceUnit price / per -
Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm
Investing in the Askar SII Narrowband (7nm) Filter is a wise choice for any serious astronomer or astrophotographer. 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 SII 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.Regular price From $199.00 USDRegular priceUnit price / per -
ZWO 1.25" LRGB Filters
These filters are specifically designed to equalize the flux of the ASI1600 mono sensor, ensuring accurate color reproduction. Achieves more than 92% transmission at the passband, allowing for clearer and brighter images. Effectively blocks infrared wavelengths from 700-1100nm, reducing unwanted IR interference.Regular price $199.00 USDRegular priceUnit price / per -
Optolong L-Enhance Light Pollution Filter 1.25"
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.Regular price $202.00 USDRegular priceUnit price / per -
Optolong SHO (SII H-Alpha OIII) Filters 2" / 1.25"
Astrophotography enthusiasts seeking to capture the mesmerizing beauty of deep-sky objects will find the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters an invaluable addition to their toolkit. Available in both 2" and 1.25" sizes, these narrowband filters are specifically designed to isolate the key emission lines of Sulfur II (SII), Hydrogen-Alpha (H-Alpha), and Oxygen III (OIII).Regular price From $205.00 USDRegular priceUnit price / per -
Optolong OIII 6.5nm Filter 1.25"
The Optolong OIII 6.5nm Filter 1.25" is designed to improve the visibility and detail of celestial objects by isolating the Oxygen III (OIII) emission line at 500nm. This filter blocks unwanted light wavelengths, including those from artificial light pollution and natural skyglow, enhancing the contrast and clarity of deep-sky objects such as emission nebulae and supernova remnants. It is particularly effective for both visual observation and astrophotography, making it an essential tool for any astronomer.Regular price $209.00 USDRegular priceUnit price / per