Astrophotography Lens
Hydrogen Alpha (H-Alpha) (Ha) 77m Narrowband Screw On Mounted Threaded Camera Lens Filter
Hydrogen Alpha (H-Alpha) (Ha) 77m Narrowband Screw On Mounted Threaded Camera Lens Filter
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Astrophotography enthusiasts and professionals alike understand the importance of capturing the intricate beauty of the cosmos. The Hydrogen Alpha (H-Alpha) (Ha) 77mm Narrowband Screw-On Mounted Threaded Camera Lens Filter is a game-changing tool designed to elevate your astrophotography to new heights. This high-performance filter is specifically crafted to isolate the H-Alpha emission line at 656nm, revealing the delicate and fascinating details of the night sky with unparalleled precision. With its ultra-narrow 20nm bandwidth, this filter effectively minimizes light pollution and maximizes contrast, allowing you to immerse yourself in the celestial tapestry with stunning clarity.
Key Features of the Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter
Capturing the H-Alpha Emission Line
The Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter is engineered to capture the specific H-Alpha emission line, a critical component in astrophotography. At a wavelength of 656nm, the H-Alpha line is essential for photographing various astronomical phenomena, such as solar prominences and nebulae. This filter’s precision ensures that your images are clear and detailed, providing a window into the dynamic and mesmerizing world of celestial objects.
Ultra-Narrow 20nm Bandwidth
One of the standout features of this filter is its ultra-narrow 20nm bandwidth. By isolating the H-Alpha wavelength, the filter blocks out other light wavelengths, reducing interference and enhancing the contrast in your images. This specificity is crucial for capturing the fine details of celestial bodies, making your astrophotography sessions more rewarding and your images more vivid and defined.
Versatile 77mm Size
The 77mm size of this filter makes it a versatile choice for a variety of camera lenses. Whether you’re using a DSLR, mirrorless camera, or a high-powered telescope, the Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter is designed to fit seamlessly into your setup. Its screw-on mounted threaded design ensures a secure fit, providing stability and ease of use, so you can focus on capturing awe-inspiring images without any hassle.
Durable and Stable Frame
Astrophotography often requires long exposure times and stable setups. The Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter comes with a sturdy frame that adds an extra layer of stability to your equipment. This frame ensures that the filter remains securely in place during your photography sessions, allowing you to achieve sharp and clear images without worrying about movement or misalignment.

The Science Behind the H-Alpha Emission Line
Understanding the significance of the H-Alpha emission line is key to appreciating the value of the Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter. The H-Alpha line, at 656nm, is part of the Balmer series of hydrogen emissions. It is produced when an electron in a hydrogen atom falls from the third to the second energy level, releasing a photon with a wavelength of 656nm. This specific emission line is particularly important in astrophotography because it corresponds to a red hue that is prominent in many celestial objects, such as nebulae and solar prominences.
Reducing Light Pollution for Clearer Images
One of the biggest challenges in astrophotography is dealing with light pollution, especially for those located near urban areas. The Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter addresses this issue by significantly reducing the impact of light pollution on your images. Its narrow bandwidth effectively blocks out unwanted light from artificial sources, allowing you to capture the true beauty of the night sky. This feature is particularly beneficial for photographers who do not have access to dark-sky locations but still want to capture high-quality astrophotography.
Enhancing Contrast and Clarity
The Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter excels at enhancing the contrast and clarity of your images. By isolating the H-Alpha emission line, it increases the contrast between celestial objects and the surrounding space, making the details more pronounced. This enhanced contrast is essential for capturing the intricate structures of nebulae, the fine details of solar prominences, and other celestial phenomena, ensuring that your images are not only beautiful but also scientifically informative.
Detailed Specifications
To fully appreciate the capabilities of the Hydrogen Alpha (H-Alpha) (Ha) 77mm Filter, let’s delve into its detailed specifications:
- Wavelength: 656nm
- Bandwidth: 20nm
- Size: 77mm
- Frame: Included for stability
These specifications highlight the filter’s focus on precision, versatility, and stability, making it an essential tool for serious astrophotographers.












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