The Astro-modifying filter is designed specifically for Canon DSLR cameras, including the EOS 350D, 10D, 20D, and 30D models. This filter replaces the original manufacturer sensor filter to improve spectral transmission, making it ideal for astrophotography. By enhancing the camera’s sensitivity to specific wavelengths of light, it allows for better imaging of celestial objects, providing superior results in your night sky photography.