1.25/2inch/EOS-C CLS City Light Pollution Suppression Broadband Filters for Deep Sky Visual Astronomical Photography
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Key Features
Utilizing electron beam gun evaporation with Ion-assisted deposition coating technology, this filter offers superior durability and scratch resistance, ensuring long-lasting performance without degradation, even under demanding conditions.
The filter achieves 90% transmission for key nebula emission lines (e.g., Ha 656nm, OIII 496nm, SII 672nm, and H-beta 486nm), making it ideal for observing and capturing deep-sky objects with enhanced clarity and detail.
The planetary rotation system ensures precise coating with excellent homogeneity, providing consistent performance and high transmission of pass-band wavelengths, while maintaining optical density in off-band regions.
With 0.1% transmission of off-band wavelengths, this filter effectively blocks harmful artificial light pollution (e.g., Na 589nm, Hg 435nm, and 578nm), enhancing the contrast of celestial objects for clearer, more detailed imaging.
Perfect for use with color CCD cameras and unmodified DSLR cameras, the filter is specifically designed to suppress urban light and improve the contrast of your target objects, making it essential for urban astrophotography.
⚡ Shipped: 72 hrs after ordering (Pre-sale products excluded).
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