NEW PRODUCT: Astronomik 4nm emission linie filters
The 4nm filters are the latest addition to our Astronomik Narrowband-Emissionline filter range.
The Astronomik Narrowband-Emissionline filters with a Full-Width-Half-Maximum (FWHM) of 4nm are the best choice for astrophotography under extremely light-polluted skies. Astrophotographers who take pictures in a big city from their home garden or balcony have a powerful tool in the 4nm filters to create great, detailed, and high-contrast images of faint objects even under really bad skies.
