Collection: Products

Sulfur-II (SII) is typically found in space within ionized gas regions, particularly in areas where star formation is active or has recently occurred.

Sulfur-II (SII) is typically found in space within ionized gas regions, particularly in areas where star formation is active or has recently occurred.

This filter, crafted with cutting-edge technology, is a testament to quality and innovation, making it an essential tool for discerning astrophotographers. Whether you're a professional or an enthusiast, the SII Filter helps you uncover the mysteries of the cosmos, revealing celestial phenomena that go beyond what is visible to the naked eye or standard camera equipment.

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.

The ZWO 2" Duo-Band Dual Narrowband Filter is a game-changing accessory for astrophotographers and astronomers who want to elevate their imaging capabilities. This filter is designed to complement ZWO's range of color ASI cameras, allowing users to capture stunning images of deep-sky objects with remarkable clarity and contrast.

The ZWO 2" H-Alpha Ha Filter 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.

It allows a 7nm bandwidth of light centered on a wavelength of 500nm, effectively blocking all other light and significantly reducing light pollution. Approximately 90% transmission at the major OIII emission line of 500nm, ensuring bright and clear images of nebulas.

Perfect for capturing detailed and high-contrast images of emission nebulae. Essential for taking stunning astrophotographs that highlight the intricate structures of celestial objects.

This filter is designed for imaging and is not suitable for visual observation. It is specifically crafted to improve planetary and lunar imaging by blocking visible light and allowing infrared light to pass through. For best results, use this filter with a camera setup that is sensitive to infrared light.

Ensures optimal light throughput while blocking unwanted wavelengths, enhancing the visibility of methane-rich regions.

The ZWO Duo Band Filter 1.25" is a revolutionary dual narrowband filter designed to significantly improve your astrophotography results. This filter is specifically crafted to complement ZWO's range of color ASI cameras, making it an ideal choice for astronomers who already own a One Shot Color (OSC) camera.

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.

Each filter has more than 92% transmission at passband, ensuring bright and clear images. Precision Off-Band Blocking: Minimizes the impact of unwanted light, allowing for greater image clarity and contrast. Ensures accurate 1/4 wavefront, providing superior optical quality. Blocks infrared wavelengths from 700-1100nm, preventing unwanted IR interference.

The ZWO OIII Narrowband Filter is primarily used for capturing and enhancing images of deep-sky objects such as nebulae. By isolating the OIII emission lines, it enables astrophotographers to obtain clearer and more detailed images, even in light-polluted environments.

The ZWO SHO 2" Inch Filter Set Kit (Ha SII OIII) Narrowband 7nm offers a range of options to suit different astrophotography needs. You can select the Ha 7nm 2inch filter, which is perfect for capturing the rich details of hydrogen-alpha emitting nebulae with a narrow 7nm bandpass centered on 656nm.

The filter allows only a 7nm bandwidth of light centered on the SII emission lines (672nm), providing high contrast and detailed views of nebulae.