61 products were found matching your search for H alpha in 3 shops:

Before you embark on your next astrophotography adventure, consider the high-quality H-Alpha H-Beta OIII (Ha-HB-OIII) Imaging Filter, specifically designed for the 8" RASA. This innovative filter is your key to capturing breathtaking, detailed images of the night sky, even from the confines of a light-polluted backyard. The advanced technology of this filter allows for high transmission of light from emission nebulae, effectively blocking light pollution. This results in images that burst with detail against a stark, contrasting black sky background. The filter strategically eliminates the impact of light pollution by blocking specific wavelengths, while allowing the beneficial wavelengths associated with emission nebulae to pass through to your camera. The Ha-HB-OIII Imaging Filter is perfect for imaging emission nebulae like the North America Nebula (NGC 7000), Lagoon Nebula (M8), Orion Nebula (M42), and the Carina Nebula (NGC 3372). It transmits key Ha-HB-OIII wavelengths that produce high contrast for emission nebulae, with a transmission spectrum of 85% or greater at key wavelengths (486nm, 496nm/501nm, 656nm) and less than 0.5% transmission elsewhere. This durable filter, made by Celestron, a reputable brand in the field of astronomy and optics, is a narrowband filter that blocks much of the visible spectrum, allowing only specific wavelengths through. It is custom-engineered to work at F/2, ensuring none of the beneficial light from the nebula is inadvertently blocked. The filter is housed in a machined aluminum black anodized cell with a knurled rim for easy installation. An anti-reflection coating has been added to suppress reflections on the glass. It fits directly into the internal filter mount in the RASA 8's front lens cell, maintaining the optical performance for the entire system. Each filter comes with a foam-lined plastic storage case and retaining ring for safe storage. A spectral transmission graph unique to your specific unit is also included, verifying its performance. With the Ha-HB-OIII Imaging Filter for the 8" RASA, your astrophotography will reach new heights of detail and contrast.

Before you embark on your next astrophotography adventure, consider the high-quality H-Alpha H-Beta OIII (Ha-HB-OIII) Imaging Filter, specifically designed for the 8" RASA. This innovative filter is your key to capturing breathtaking, detailed images of the night sky, even from the confines of a light-polluted backyard. The advanced technology of this filter allows for high transmission of light from emission nebulae, effectively blocking light pollution. This results in images that burst with detail against a stark, contrasting black sky background. The filter strategically eliminates the impact of light pollution by blocking specific wavelengths, while allowing the beneficial wavelengths associated with emission nebulae to pass through to your camera. The Ha-HB-OIII Imaging Filter is perfect for imaging emission nebulae like the North America Nebula (NGC 7000), Lagoon Nebula (M8), Orion Nebula (M42), and the Carina Nebula (NGC 3372). It transmits key Ha-HB-OIII wavelengths that produce high contrast for emission nebulae, with a transmission spectrum of 85% or greater at key wavelengths (486nm, 496nm/501nm, 656nm) and less than 0.5% transmission elsewhere. This durable filter, made by Celestron, a reputable brand in the field of astronomy and optics, is a narrowband filter that blocks much of the visible spectrum, allowing only specific wavelengths through. It is custom-engineered to work at F/2, ensuring none of the beneficial light from the nebula is inadvertently blocked. The filter is housed in a machined aluminum black anodized cell with a knurled rim for easy installation. An anti-reflection coating has been added to suppress reflections on the glass. It fits directly into the internal filter mount in the RASA 8's front lens cell, maintaining the optical performance for the entire system. Each filter comes with a foam-lined plastic storage case and retaining ring for safe storage. A spectral transmission graph unique to your specific unit is also included, verifying its performance. With the Ha-HB-OIII Imaging Filter for the 8" RASA, your astrophotography will reach new heights of detail and contrast.

Explore the wonders of the night sky with the Baader Planetarium H-Alpha 7nm Narrowband Filter, a high-quality, durable, and reliable tool specifically designed for astrophotography. This innovative filter delivers unparalleled contrast in deep sky images of H-II regions, all within the shortest possible exposure times. Its narrow 7nm FWHM bandwidth boasts a transmission rate at H-Alpha of over 90%, effectively rejecting light pollution and enhancing your celestial viewing experience. The Baader 7nm H-Alpha filter's high optical quality ensures no loss in sharpness or contrast, allowing you to capture the intricate details of the night sky with precision and clarity.Each substrate of this effective filter is fine-optically polished plane parallel, delivering a smooth and accurate 1/4 wavefront over the entire surface. This unique custom polishing operation sets the Baader filters apart from other standard precision polished filter substrates used by most other filter manufacturers.The coatings on this reliable filter are professionally applied using the most advanced equipment available, ensuring high consistency for bandpass centering and transmission. The ultra-hard ionbeam deposition guarantees the coatings will stand the test of time, never degrading from use or normal cleaning. In the world of astronomy and astrophotography, the Baader Planetarium H-Alpha 7nm Narrowband Filter is a testament to the blend of innovation and quality that Baader Planetarium is renowned for.

Overcome the challenges of astrophotography with the Alpine Astronomical Baader 7nm H-alpha Enforced-Narrowband CCD Imaging Filter, a high-quality, innovative product from the reputable brand, Baader Planetarium. This durable filter is expertly centered on the 656.3nm wavelength, and exclusively passes the narrow 7nm bandwidth, making it an ideal accessory for full-frame CCD and CMOS imaging sensors on a wide range of optical systems. Whether you're using a super-fast f/2.8 telescope or a more moderate f/2.10, this filter is designed to enhance your astrophotography experience. Each filter is individually planeoptically polished, treated with a dielectric anti-reflection coating, and IR blocked to ensure the highest quality images. This meticulous process allows the filter to pass the maximum amount of bandwidth possible, virtually eliminating halos, reflections, and ghosting in your images.One of the standout features of this filter is its ability to reject light pollution and block longer interfering wavelengths. This allows even the faintest deep-sky objects to be imaged with clarity, regardless of your location or the level of ambient light. Moreover, this filter can help you achieve stunning results with shorter exposure times compared to other filters.The Baader 7nm H-alpha Enforced-Narrowband CCD Imaging Filter is offered as a 50x50mm square unmounted option, making it a versatile choice for custom applications and imaging rigs. Whether you're a seasoned astrophotographer or a beginner in the field, this filter is a valuable addition to your equipment, designed to bring the wonders of the night sky into sharper focus.

Enhance your astrophotography experience with the Baader Planetarium 2" Round H-alpha Enforced-Narrowband 3.5nm Filter, meticulously engineered for f/10 to f/3.5 optical systems. This high-quality, durable filter is your gateway to the incredibly narrow 3.5nm H-alpha world, allowing you to delve into the cosmos with unprecedented clarity.Crafted with innovative technology, this filter dramatically boosts contrast, enabling the capture of even the faintest stars and revealing more intricate details of the most elusive nebulae. Its effectiveness is rooted in the stringent manufacturing process that demands extreme coating homogeneity and exceptional central wavelength (CWL) precision, ensuring that only the H-alpha wavelength is transmitted, while all other wavelengths are blocked.The enforced contrast achieved through this filter's design results in astrophotography images that are not only more detailed but also more reliable, as it significantly reduces the impact of light pollution. This makes it an indispensable tool for astrophotographers seeking to document the beauty of the night sky in its purest form.The initial production of these innovative filters has focused on the most essential sizes, including the 2" / 50.4 mm round and 50x50 mm square formats, with additional sizes anticipated to meet the needs of various optical systems. With a full width at half maximum (FWHM) that defines the precision of this filter, astrophotographers can trust in the consistent performance and quality that Baader Planetarium is renowned for.Choose the Baader Planetarium 2" Round H-alpha Enforced-Narrowband 3.5nm Filter for a transformative astrophotography experience, capturing celestial wonders with unparalleled detail and clarity.

Where astrophotography meets innovation, the Baader Planetarium Narrowband H-Alpha Filter 7nm, 65x65x3mm Square (without Cell) stands out. This high-quality, durable filter is centered on the 656.3nm wavelength, passing the narrow 7nm bandwidth, making it an exceptional choice for full-frame CCD and CMOS imaging sensors on a variety of optical systems. Designed to work seamlessly with telescopes of all configurations and apertures, this filter performs optimally in a range from a super-fast f/2.8 to a more moderate f/10. Each filter is individually planeoptically polished, featuring a dielectric anti-reflection coating and IR blocking. This ensures the filter uniformly passes the maximum amount of bandwidth possible, virtually eliminating halos, reflections, and ghosting for a clear, crisp image every time.One of the standout features of this innovative filter is its ability to completely reject light pollution and block longer interfering wavelengths. This enables even the faintest deep-sky objects to be imaged, regardless of the user's location, and with shorter exposure times compared to other filters. Offered as a 65x65mm square unmounted option, this filter is perfect for custom applications and imaging rigs. Please note, this filter is intended solely for deep-sky astroimaging with CCD systems, and should never be used for direct solar viewing or solar photography, as it can cause permanent injury to your eye and equipment. In the world of astrophotography, the Baader Planetarium Narrowband H-Alpha Filter 7nm, 65x65x3mm Square (without Cell) is a game-changer, designed to help you capture the beauty of the night sky in all its glory.

Make your astrophotography stand out with the 1.25" Round H-alpha f/2 Highspeed Filter with LPFC Mount. This high-speed narrowband filter is meticulously designed to meet the intricate requirements of ultra-fast astrograph optics, specifically tailored for Hyperstar and RASA systems. Unlike conventional narrowband filters, which often result in significant transmission loss due to the strong Central Wavelength (CWL) shift, this filter boasts a CWL-preshift that perfectly aligns with f/2 to f/3 optics. This feature ensures that even in extreme cases, the CWL does not shift out of the Full Width at Half Maximum (FWHM), thereby maintaining optimal image quality.The FWHM of this filter is expertly optimized to deliver maximum contrast, even with the typical line broadening associated with fast optical trains. This makes it an ideal choice for those seeking to capture high-contrast emission nebulae imaging.For the first time, this filter enables the effective use of fast optics in astrophotography. When used between f/1.8 and f/3.5, it shows a dramatic improvement over regular sets of narrowband filters. Enhance your astrophotography experience with the 1.25" Round H-alpha f/2 Highspeed Filter with LPFC Mount, designed to deliver superior performance and unparalleled image quality.

Become an astrophotography aficionado with the Baader Planetarium 50.4mm Round H-alpha Enforced-Narrowband 3.5nm Filter, meticulously engineered for f/10 to f/3.5 optical systems. This high-quality, durable filter is your gateway to the exceptionally narrow 3.5nm H-alpha wavelength, allowing you to delve into the depths of the cosmos with unparalleled clarity.Crafted with precision, this filter enhances contrast dramatically, making even the faintest stars stand out against the darkness of space. It provides an increased signal of the most subtle nebulae details, ensuring that your celestial observations and photographs capture the awe-inspiring beauty of the night sky.The production of such an ultra-narrow filter demands extreme coating homogeneity and exacting center-wavelength (CWL) precision. Baader Planetarium's innovative technology meets these stringent requirements, ensuring that each filter delivers reliable and effective performance. Initially available in the most sought-after sizes, including the 50.4mm round and 50x50mm square formats, this filter is a testament to the brand's commitment to serving the needs of astronomy enthusiasts and professionals alike.With the Baader Planetarium 50.4mm Round H-alpha Enforced-Narrowband 3.5nm Filter, you're not just observing the night sky; you're immersing yourself in the intricate details of the universe. Whether you're capturing the delicate wisps of a distant nebula or the fiery glow of a star in formation, this filter is an essential tool for anyone serious about astrophotography and sky observation.

How can you elevate your astrophotography to the next level? The answer lies in the 2" Round H-alpha f/2 Highspeed Filter with LPFC Mount from the reputable brand, Baader Planetarium. This high-quality, durable filter is specifically designed to meet the intricate requirements of ultra-fast astrograph optics, including Hyperstar and RASA systems. Unlike conventional narrowband filters that often result in significant transmission loss due to the strong Central Wavelength (CWL) shift, this innovative filter features a CWL-preshift that perfectly aligns with f/2 to f/3 optical systems. This ensures that even in extreme cases, the CWL does not shift out of the Full Width at Half Maximum (FWHM), thereby maintaining the integrity of your images.The FWHM of this reliable filter is optimized to deliver maximum contrast, even with the typical line broadening associated with fast optical trains. This makes it an effective tool for capturing high contrast images of emission nebulae and other celestial objects.For the first time, this filter allows astrophotographers to utilize fast optics effectively, showing a dramatic improvement in image quality when used between f/1.8 and f/3.5 compared to regular sets of narrowband filters. With a large filter size of 50.8mm, it allows a wider field of view and more light to enter your camera, making it ideal for low-light applications.In summary, the 2" Round H-alpha f/2 Highspeed Filter with LPFC Mount is an essential tool for any serious astrophotographer looking to capture the night sky in the H-alpha wavelength with unparalleled clarity and detail.

Introducing the Sky-Watcher Heliostar 76mm H-Alpha Solar TelescopeThe Heliostar 76mm H-alpha Solar Telescope brings a new light (yes, pun intended) to the Sky-Watcher family by offering a dedicated Hydrogen-alpha (Ha) solar telescope to the lineup. Hydrogen-alpha solar observing allows you to unlock the incredible dynamics of surface of the Sun far beyond what a white light solar filter can deliver. From solar prominences on the limb of the Sun (often mistakenly called 'flares'), to active sunspot regions, bright plage patches, surface granulation, wispy, snake-like plasma filaments, and more, the star of the solar system is yours to capture in breathtaking views and images.Just in time to catch solar maximum in 2025!!The Heliostar 76Ha features a collection of accessories to ensure you are ready for viewing out of the box. The telescope includes mounting rings, V-style dovetail, Heliostar solar finder, dual speed Crayford focuser, 11.5mm blocking filter, clip on sunshade, 20mm 70 Degree 1.25" eyepiece and a camera phone adapter to snap quick pictures to share with your friends. All of this is housed inside a rugged carrying case, so you are ready to take your Heliostar 76 anywhere. A perfect match for the Sky-Watcher SolarQuest mount for the ultimate, portable solar telescope setup!The Official Solar Telescope of the Charlie Bates Solar Astronomy ProjectFounded in 2008, The Charlie Bates Solar Astronomy Project has taught observational solar astronomy and narrowband solar imaging to hundreds of thousands of people in 27 countries. Double the FunThe Heliostar 76mm Ha Solar Telescope provides incredible double stack performance for the price of one etalon filter. There is no need for costly double stack systems, Heliostar 76Ha is tuned to Safety InformationThe Sky-Watcher Heliostar 76mm H-Alpha Solar Telescope has been lab tested here in the United States to meet the ISO 12312-2 safety standards. Each scope is tested one by one on the actual Sun to make sure each unit is ready for safe solar viewing right out of the box.This is a dedicated solar telescope and will not provide views or images of anything except for the Sun. Please use an abundance of caution when observing the Sun as incorrect usage and practices can result in serious and even permanent eye damage.Also, the 11.5mm blocking filter in the removable eyepiece diagonal is part of Heliostar's safety features. Do not use with any other type of diagonal.Hydrogen Alpha TechnologyHydrogen Alpha (Ha) solar telescopes are specialized instruments used to observe the Sun in a specific wavelength of light-656.3 nm-which corresponds to the red line in the Balmer series of hydrogen's emission spectrum. This wavelength is critical for studying solar phenomena like prominences, filaments, sunspots, and solar flares in great detail....

Experience the unparalleled clarity and detail with our 50x50mm Square H-alpha Enforced-Narrowband 3.5nm Filter, specifically designed for f/10 to f/3.5 optical systems. This ultra-narrowband filter is your gateway to the intricate world of H-alpha, O-III, and S-II, allowing you to capture the faintest nebula detail with enhanced contrast. Our filter's design is a testament to precision and quality, boasting superior coating homogeneity and high Center Wavelength Precision. These features ensure the filter's performance is consistently exceptional, providing you with the most accurate and detailed images possible. Whether you're an astrophotographer seeking to capture the ethereal beauty of the cosmos or a professional requiring the utmost in optical precision, the 50x50mm Square H-alpha Enforced-Narrowband 3.5nm Filter is an essential tool for your optical systems. Experience the difference in clarity and detail that this high-quality, precision-engineered filter can make in your imaging.

Discover the transformative power of the 31mm Round f/2 High-speed H-alpha Filter, unmounted, a high-quality and innovative product from the reputable Baader Planetarium. This durable and reliable filter is specifically engineered for the specialized requirements of ultra-fast astrograph optics, including Hyperstar and RASA systems. Unlike conventional narrowband filters that often result in significant transmission loss due to the strong Central Wavelength (CWL) shift, this high-speed H-alpha filter is designed with a CWL-preshift that perfectly aligns with f/2 to f/3 optics. This unique feature ensures that even in extreme cases, the CWL does not shift out of the Full Width at Half Maximum (FWHM), thereby optimizing the FWHM and delivering maximum contrast.This effective filter is a game-changer in the field of astrophotography, particularly for high contrast emission nebulae imaging. It is optimized for use with fast optics between f/1.8 and f/3.5, offering a dramatic improvement over regular sets of narrowband filters. Experience the night sky like never before with this innovative filter, designed to capture the hydrogen-alpha emission line in the sun's spectrum with unparalleled clarity and contrast. Whether you're a seasoned astrophotographer or a beginner in the field, the 31mm Round f/2 High-speed H-alpha Filter, unmounted, is a must-have addition to your astrophotography equipment.

It is a top-tier 50x50mm Square H-alpha 3.5nm CCD Filter, expertly crafted by the renowned brand, Baader Planetarium. This premium-grade filter is specifically designed for fast optical systems ranging from f/10 to f/2.8, making it an ideal choice for astrophotography enthusiasts. The filter features an advanced H-alpha interline chip, which significantly enhances the brightness and vibrancy of celestial images. Incorporating an IR-blocking feature, this filter ensures that your astrophotography is free from infrared interference, delivering clear and sharp images of the night sky. Moreover, it boasts a unique design that effectively eliminates common optical issues such as halos, reflections, and ghosting. This ensures that every captured image is as true-to-life as possible, enhancing your overall astrophotography experience.The filter also comes with non-ageing sealed coating edges, ensuring its durability and longevity. This feature protects the filter from wear and tear, allowing it to maintain its high performance over time. Whether you're a professional astronomer or an amateur stargazer, this 50x50mm Square H-alpha 3.5nm CCD Filter is a must-have tool for capturing the beauty of the cosmos.

Because capturing the perfect shot requires the right tools, the 31mm Round 7nm H-alpha CCD Enforced Narrowband Filter is an essential accessory for any serious photographer. This 1-1/4" Baader H-alpha CCD Filter, with a full-width half-maximum (FWHM) of 7nm and a diameter of 31mm, is specifically designed to enhance your imaging capabilities. The filter's half-bandwidth of 7 Nanometers makes it an ideal match for Full Frame CCD and CMOS cameras, ensuring optimal performance and image quality. This high-contrast Deep-Sky H-alpha filter is specifically designed for RGB-application, offering a significant advantage in reducing light pollution. What sets this filter apart is its complete freedom from reflections, a feature that enhances the clarity and sharpness of your images. The filter also boasts a 7-layer multicoating on the camera side, which further improves light transmission and reduces glare. The 31mm Round 7nm H-alpha CCD Enforced Narrowband Filter is not just a tool, but a game-changer for photographers seeking to capture the best possible images in challenging lighting conditions. Its plane-optically polished surface ensures a high degree of accuracy, making it a must-have for those serious about their photography.

An exceptional tool for astrophotographers, the 50.4mm Round 3.5nm Ultra-Narrowband H-alpha CCD Imaging Filter is meticulously designed for f/10 to f/3.5 optical systems. This precision-grade enforced H-alpha filter unlocks the incredibly detailed world of 3.5nm H-alpha imaging, allowing you to capture even the faintest celestial bodies with enhanced clarity. The filter's unique design significantly boosts contrast, enabling the detection of more signals from the most elusive nebulae details. This heightened sensitivity to faint stars and nebulae details sets this filter apart in the realm of astrophotography equipment. The production of such an ultra-narrow filter demands exceptional coating homogeneity and high precision in the Center-wavelength (CWL). This filter meets these stringent requirements, ensuring optimal performance and consistent results. Furthermore, it maintains a high degree of precision in the Full Width Half Maximum (FWHM), a critical factor in determining the filter's bandwidth. In summary, the 50.4mm Round 3.5nm Ultra-Narrowband H-alpha CCD Imaging Filter, Unmounted, is a superior choice for astrophotographers seeking to elevate their imaging capabilities. Its precision engineering and high-quality construction make it an indispensable tool for capturing the intricate details of the cosmos.

A 50.4mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set, Unmounted, is a specialized set of three filters: H-alpha, O III, and S II. These high-speed narrowband filters are meticulously designed to meet the precise requirements of ultra-fast astrograph optics, specifically for Hyperstar and RASA systems. Traditional narrowband filters often result in significant transmission loss due to the pronounced CWL-shift. In extreme scenarios, the CWL may even shift beyond the FWHM (CWL= Center-wavelength / FWHM= full width half maximum). To counteract this, these filters feature a CWL-preshift that aligns perfectly with f/2 to f/3 optics. The FWHM of these filters is optimized to ensure maximum contrast, even with the typical line broadening associated with fast optical trains. This makes them an ideal choice for high contrast emission nebulae imaging with fast optics. When compared to standard narrowband filters at f/2, these filters offer a triple S/N-ratio, enhancing the quality of your astro-imaging significantly. For those using these filters within the f/1.8 to f/3.5 range, the improvement over regular sets of narrowband filters is dramatic. This 50.4mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set, Unmounted, is a game-changer for astrophotography enthusiasts, offering unparalleled performance and image quality.

Introducing the Sky-Watcher Heliostar 76mm H-Alpha Solar TelescopeThe Heliostar 76mm H-alpha Solar Telescope brings a new light (yes, pun intended) to the Sky-Watcher family by offering a dedicated Hydrogen-alpha (Ha) solar telescope to the lineup. Hydrogen-alpha solar observing allows you to unlock the incredible dynamics of surface of the Sun far beyond what a white light solar filter can deliver. From solar prominences on the limb of the Sun (often mistakenly called 'flares'), to active sunspot regions, bright plage patches, surface granulation, wispy, snake-like plasma filaments, and more, the star of the solar system is yours to capture in breathtaking views and images.Just in time to catch solar maximum in 2025!!The Heliostar 76Ha features a collection of accessories to ensure you are ready for viewing out of the box. The telescope includes mounting rings, V-style dovetail, Heliostar solar finder, dual speed Crayford focuser, 11.5mm blocking filter, clip on sunshade, 20mm 70 Degree 1.25" eyepiece and a camera phone adapter to snap quick pictures to share with your friends. All of this is housed inside a rugged carrying case, so you are ready to take your Heliostar 76 anywhere. A perfect match for the Sky-Watcher SolarQuest mount for the ultimate, portable solar telescope setup!The Official Solar Telescope of the Charlie Bates Solar Astronomy ProjectFounded in 2008, The Charlie Bates Solar Astronomy Project has taught observational solar astronomy and narrowband solar imaging to hundreds of thousands of people in 27 countries. Double the FunThe Heliostar 76mm Ha Solar Telescope provides incredible double stack performance for the price of one etalon filter. There is no need for costly double stack systems, Heliostar 76Ha is tuned to Safety InformationThe Sky-Watcher Heliostar 76mm H-Alpha Solar Telescope has been lab tested here in the United States to meet the ISO 12312-2 safety standards. Each scope is tested one by one on the actual Sun to make sure each unit is ready for safe solar viewing right out of the box.This is a dedicated solar telescope and will not provide views or images of anything except for the Sun. Please use an abundance of caution when observing the Sun as incorrect usage and practices can result in serious and even permanent eye damage.Also, the 11.5mm blocking filter in the removable eyepiece diagonal is part of Heliostar's safety features. Do not use with any other type of diagonal.Hydrogen Alpha TechnologyHydrogen Alpha (Ha) solar telescopes are specialized instruments used to observe the Sun in a specific wavelength of light-656.3 nm-which corresponds to the red line in the Balmer series of hydrogen's emission spectrum. This wavelength is critical for studying solar phenomena like prominences, filaments, sunspots, and solar flares in great...

Let your astrophotography ascend to new heights with the 31mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set, expertly crafted by Baader Planetarium. This high-quality, durable, and innovative set of three filters is specifically designed to meet the exacting demands of ultra-fast astrograph optics, such as Hyperstar and RASA systems.Each filter in this setfthe H-alpha, OIII, and SIIfis meticulously engineered to overcome the common challenges faced with conventional narrowband filters, which often suffer from significant transmission loss due to the CWL-shift. With a pre-shifted Center-wavelength (CWL) that harmonizes perfectly with f/2 to f/3 optics, these filters ensure that the full width half maximum (FWHM) is not only maintained but optimized for your imaging needs.The result is a filter set that, despite the line broadening typically associated with fast optical trains, delivers maximum contrast and detail. This makes it an effective tool for capturing the intricate structures of emission nebulae with unparalleled clarity. When used with optics ranging from f/1.8 to f/3.5, the filters exhibit a dramatic improvement in image quality, offering a triple signal-to-noise ratio compared to standard narrowband filters at f/2.Versatile and effective, this filter set is an essential addition for any astrophotographer looking to explore the cosmos with fast optics. Whether you're capturing the vibrant hues of a distant nebula or the subtle details of the sun's surface, the 31mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set is designed to elevate your celestial photography to professional levels. Experience the universe through your lens with vivid colors and sharp contrasts, thanks to the innovative design and superior performance of these Baader Planetarium filters.

Take your astrophotography to the next level with the 36mm Round 3.5nm Ultra-Narrowband H-alpha CCD Imaging Filter, unmounted. This high-quality, durable filter from the reputable brand, Baader Planetarium, is specifically engineered for f/10 to f/3.5 optical systems, making it an essential tool for capturing the breathtaking beauty of the night sky. Designed to open up the extremely narrow 3.5nm H-alpha world, this innovative filter enhances contrast, enabling even the faintest stars to shine brighter and providing more signal of the faintest nebulae detail. This level of precision is crucial for astrophotographers who aim to capture the intricate details of celestial objects. The manufacturing of such an ultra-narrow filter requires extreme coating homogeneity and very high CWL precision. This filter is designed to meet these exacting standards, ensuring reliable performance and consistent results. CWL refers to the Center-wavelength, and FWHM denotes the full width half maximum, both critical parameters in astrophotography. Whether you're a seasoned astrophotographer or a beginner looking to enhance your night sky imaging, this 36mm Round 3.5nm Ultra-Narrowband H-alpha CCD Imaging Filter is a reliable and effective choice.

Why settle for anything less than the pinnacle of astrophotography precision? The 31mm Round 3.5nm Ultra-Narrowband H-alpha CCD Imaging Filter, unmounted, is a testament to the fusion of durability and high-quality innovation that Baader Planetarium is renowned for. This filter is meticulously crafted for astrophotographers who demand the utmost in image clarity and detail when capturing the elusive beauty of the cosmos.Designed to work seamlessly with optical systems ranging from f/10 to f/3.5, this filter is a gateway to the extraordinarily narrow 3.5nm H-alpha world. It significantly enhances contrast, allowing even the faintest of stars to emerge with clarity, and provides an increased signal of the faintest nebulae details that are often lost with lesser filters. The result is a breathtaking view of the night sky, with celestial objects revealed in stunning detail.The production of such an ultra-narrowband filter requires exceptional coating uniformity and precise control of the center-wavelength (CWL), ensuring that only the H-alpha wavelength is transmitted. This level of precision is achieved through advanced manufacturing techniques, resulting in a filter with a full width at half maximum (FWHM) that is finely tuned for astrophotography excellence.Reliable and effective, this filter is a crucial tool for any astrophotographer looking to push the boundaries of their craft. Whether you're capturing the intricate structures of a distant nebula or the delicate tracery of a star cluster, the 31mm Round 3.5nm Ultra-Narrowband H-alpha CCD Imaging Filter ensures that your images will be imbued with the depth and detail that only true specialization can provide. Embrace the innovative technology that sets this filter apart and let your astrophotography ascend to celestial heights.