Astronomik CLS CCD Light Pollution Filter

The filter works by blocking the specific wavelengths of light emitted by common artificial sources like mercury and sodium-vapor streetlights. By suppressing this background glow, it increases the contrast of deep-sky objects, allowing you to capture fainter details that would otherwise be washed out in urban environments.

This is a 36mm round mounted filter, so it is designed for specific filter wheels or filter drawers that accommodate this size. Before purchasing, ensure your telescope's imaging train or filter wheel supports 36mm mounted filters.

Yes, using a light pollution filter will shift the color balance of your images because it removes specific parts of the spectrum. You will need to perform color calibration during your post-processing workflow to restore natural-looking colors.

While it is optimized for CCD and CMOS imaging, it can be used for visual observation. However, because it is a mounted filter designed for imaging setups, it may not fit standard eyepieces without specific adapters.

The 'CCD' version includes an integrated IR-blocker, which is essential for modern digital sensors. This prevents infrared light from causing bloated stars or focus issues, ensuring your images remain sharp and clear.