Optolong Filters L-Para 2" (85360)
212.38 £
Tax included
The Optolong L-Para 2" filter is a dual narrowband light pollution filter designed to significantly enhance astrophotography, especially in environments affected by urban or suburban light pollution. It is optimized for both standard and fast optical systems, including setups with focal ratios as low as F2, making it compatible with a wide range of telescopes and imaging trains. The filter isolates the key emission lines of nebulae-OIII at 500.7 nm and H-alpha at 656.3 nm-each with a narrow 10 nm bandwidth.