Related Products
£89.00 - £206.00
The Astronomik H-beta is a filter for visual observation, in particular with instruments of larger aperture.
£22.00 - £29.99
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.
£45.00 - £67.00
The narrowband UHC filter isolates the two doubly ionized oxygen lines (496 and 501nm) and hydrogen-beta line (486nm).