SvBony EOS-C CLS Filter F9155A

Discover the enhanced capabilities of night sky observation with the SVBONY City Light Suppression Filter. This broadband filter is expertly designed to improve the visibility of deep-sky objects by selectively reducing the transmission of light pollution wavelengths from artificial sources like mercury and sodium vapor lamps, as well as natural skyglow. It's particularly effective in enhancing the contrast and detail for both visual and photographic pursuits in areas affected by light pollution.

Featuring a sophisticated design with multi-layer anti-reflection coatings and a non-cementing optical substrate, the filter is built for durability and consistent performance. Its advanced electron-beam gun evaporation with ion-assisted deposition coating technology ensures resistance to scratches and maintains central wavelength stability, regardless of temperature changes. The ultra-thin filter cell design minimizes vignetting, maximizing your viewing area.

This filter achieves a remarkable 90% transmission of key nebula emission lines while reducing common artificial light pollution wavelengths to just 0.1%, making it an ideal choice for use with color CCD cameras and unmodified DSLRs. It's crafted to enhance the contrast between nebulae and the night sky, although it does not eliminate light pollution entirely or increase the brightness of celestial objects.

Designed for the amateur astronomer and astrophotographer, the SVBONY City Light Suppression Filter is a crucial tool for observing and capturing the beauty of the cosmos in areas with moderate light pollution. Remember, it's not suitable for solar observation – direct sun viewing can result in serious eye damage.