€314.05
2" x 2mm Baader H-alpha Ultra-Narrowband CMOS Filter - premium grade - with 2" screw thread (M48)3.5nm FWHM (to harmonize shutter speed with O-III/S-II), recommended for optical systems slower than f/3.4Enables the...
English GB
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 ultra narrow band H-alpha filter - CMOS optimized&media=https://haxon.es/12773-large_default/36mm-35nm-ultra-narrow-band-h-alpha-filter-cmos-optimized.jpg){kind=link}
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