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SVBONY Telescope Filter H-Alpha 7nm 2 inches Filter Narrowband Astronomical Photographic CCD Filter Color Filter Set for Deep Sky Photography
High cutoff the light damage and other stray light interference Using Germany imported glass, using double-sided polishing processing;carton PP environmentally friendly materials, simple and beautiful For the emission line 656nm transmittance of 85% or more;lined with double-layer EVA damping cotton The narrow band filter,even in areas where light pollution is heavy,and the full moon (the moon's largest and brightest) is the same,very narrow bandwidth, which reduces the interference of the external environment,but the haze and cloudy the weather is not possible Precision CNC integrated molding;multi layers anti reflection coating;frame with high-quality aluminum alloy material;anod

Price is $146.00

Price: $145.99