-
Optolong ND3 Filter 1.25"
The filter has an ND-3.0 rating, offering a 1,000 reduction factor and a transmission of 0.1%, significantly reducing the brightness of celestial objects. The filter uniformly transmits all wavelengths of light, retaining the true color of the observed object.Regular price $45.99 USDRegular priceUnit price per -
ZWO 850nm IR Pass Filter 1.25"
The ZWO 850nm IR Pass Filter 1.25" is primarily used for capturing and enhancing images of planets and the Moon under challenging atmospheric conditions. By isolating the infrared part of the spectrum, it allows astronomers and astrophotographers to obtain clearer and more detailed images, even during daylight or when objects are low on the horizon.Regular price $52.00 USDRegular priceUnit price per -
Optolong Moon & Skyglow Filter 1.25"
Transform your astronomical observations and astrophotography with the Optolong Moon & Skyglow Filter 1.25". 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.Regular price $72.00 USDRegular priceUnit price per -
Optolong Variable Polarizing Filter 1.25"
Constructed from durable optical glass and aero-metal, ensuring long-lasting performance and reliability. Features multi-layer anti-reflection coatings to maximize light transmission and minimize reflections.Regular price $79.00 USDRegular priceUnit price per -
Optolong UV/IR Cut Filter 1.25"
Blocks wavelengths outside the 450-520nm and 620nm range, eliminating UV and IR light that can cause image distortion and reduce contrast.Regular price $84.00 USDRegular priceUnit price per -
Optolong CLS Filter 1.25"
Blocks 0.1% of off-band wavelengths, specifically targeting major emission lines of artificial light pollution such as Na (589nm) and Hg (435nm and 578nm).Regular price $95.00 USDRegular priceUnit price per -
Optolong UHC Light Pollution Filter 1.25"
Blocks 0.1% of major transmission lines of artificial light pollution such as Hg (435.8nm, 546.1nm, 577nm, and 578.1nm) and Na (589nm, 615.4nm, and 616.1nm).Regular price $95.00 USDRegular priceUnit price per -
Optolong OIII 18nm Filter 1.25"
Optimized for specific wavelengths, it offers 90% transmission at 495.9 nm and 500.7 nm, critical for viewing ionized oxygen in nebular regions. The filter significantly cuts out unwanted light with only 0.1% transmission at certain wavelengths, further clarifying your celestial observations.Regular price $128.00 USDRegular priceUnit price per -
Optolong IR Pass 685nm Filter 1.25"
Made from B260 substrate material from Germany, 2.0mm thick, ensuring durability and stability on the central wavelength (CWL). Features multiple layers of anti-reflection non-cementing coatings, applied via electron-beam gun evaporation with ion-assisted deposition for enhanced durability and scratch resistance.Regular price $129.00 USDRegular priceUnit price per -
ZWO Duo Band Filter 1.25"
Investing in the ZWO Duo Band Filter 1.25" 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.Regular price $129.00 USDRegular priceUnit price per -
Optolong H-Beta 25nm Filter 1.25"
The Optolong H-Beta 25nm Filter 1.25" is an essential tool for anyone serious about astronomy and astrophotography. Its ability to isolate the H-Beta emission line and reduce light pollution makes it invaluable for capturing detailed images of faint nebulae. With its high-quality construction and advanced features, this filter will significantly improve your stargazing and imaging experience.Regular price $140.00 USDRegular priceUnit price per -
ZWO CH4 Methane Filter 20nm 1.25"
Ensures optimal light throughput while blocking unwanted wavelengths, enhancing the visibility of methane-rich regions.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 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.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 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 OIII Narrowband Filter 1.25" (7nm)
The ZWO OIII Narrowband Filter 1.25" (7nm) is a high-performance filter designed to significantly improve your astrophotography and visual observation of nebulae. This filter is tailored to allow a specific bandwidth of light centered on a wavelength of 500nm, which corresponds to the Oxygen III (OIII) emission lines.Regular price $179.00 USDRegular priceUnit price per -
ZWO SII Narrowband Filter 1.25" Inch (7nm)
The filter allows only a 7nm bandwidth of light centered on the SII emission lines (672nm), providing high contrast and detailed views of nebulae.Regular price $179.00 USDRegular priceUnit price per -
Askar Duo-Band Narrowband Filter 2" / 1.25"
The Askar Duo-Band Narrowband Filter 2" / 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.Regular price From $189.00 USDRegular priceUnit price per -
Askar H-Alpha Narrowband (7nm) Ha Filter 2" / 1.25" / 36mm / 31mm
The Askar H-Alpha Narrowband (7nm) Ha Filter is primarily used for capturing and observing H-alpha emitting nebulae and supernova remnants. 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. This makes it an invaluable tool for anyone conducting detailed studies of these celestial phenomena.Regular price From $199.00 USDRegular priceUnit price per -
Askar OIII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm
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.Regular price From $199.00 USDRegular priceUnit price per -
Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm
The Askar SII Narrowband (7nm) 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. Don't miss the opportunity to add this high-quality filter to your astronomical toolkit.Regular price From $199.00 USDRegular priceUnit price per -
ZWO 1.25" LRGB Filters
The ZWO 1.25" LRGB Filters are a must-have for any serious astrophotographer looking to capture stunning, high-contrast images of the night sky. These filters are specifically designed to work seamlessly with monochrome cameras, such as the ASI1600 mono sensor, providing accurate color reproduction and enhanced detail in your astrophotography.Regular price $199.00 USDRegular priceUnit price per -
Optolong L-Enhance Light Pollution Filter 1.25"
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.Regular price $202.00 USDRegular priceUnit price per -
Optolong SHO (SII H-Alpha OIII) Filters 2" / 1.25"
Each filter isolates a 6.5nm bandwidth centered at its respective emission line, ensuring high contrast and detailed images. SII and OIII filters offer 80% transmission at their designated wavelengths, while the H-Alpha filter provides over 85% transmission.Regular price From $205.00 USDRegular priceUnit price per -
Optolong OIII 6.5nm Filter 1.25"
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.Regular price $209.00 USDRegular priceUnit price per
