€351.24
Baader CMOS H-alpha f/3 2" x 2mm ultra high speed filter - premium grade - with 2" screw thread (M48)
3.5nm FWHM (to harmonize shutter speed with O-III/S-II), recommended for fast f/3.4 to f/2.3 optics
Especially...
English GB
Español
![](http://pinterest.com/pin/create/button/?url=https%3A%2F%2Fhaxon.es%2Fgb%2Ftelescopios%2F2533-2-f3-35nm-ultra-high-speed-h-alpha-filter-optimized-for-cmos-2001520007768.html&description=2" f/3 (3.5nm) ultra-high-speed H-alpha filter: optimized for CMOS&media=https://haxon.es/12866-large_default/2-f3-35nm-ultra-high-speed-h-alpha-filter-optimized-for-cmos.jpg){kind=link}
 – CMOS Optimized&media=https://haxon.es/12872-large_default/ultra-high-speed-h-alpha-filter-504mm-f3-35nm-cmos-optimized.jpg){kind=link}
 – Optimized CMOS&media=https://haxon.es/12877-large_default/ultra-high-speed-h-alpha-filter-36mm-f3-35nm-optimized-cmos.jpg){kind=link}