All Light Pollution Filters
From £71.00
The Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass.
From £89.00
The filter enhances the contrast between all deep-sky objects and the background.
From £22.00
These contrast-enhancing filters are designed to block out the wavelengths of light emitted by mercury-vapour light and other common causes of light pollution.
