Baader Planetarium H-alpha f/3 Ultra-Highspeed-Filters (3.5nm) - CMOS-Optimized Size Option:50.4 mm The Mark IV Zoom

SKU: 88677257746

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Baader Planetarium H-alpha f/3 Ultra-Highspeed-Filters (3.5nm) - CMOS-Optimized Size Option:50.4 mm The Mark IV ZoomThis new generation of Baader CMOS filters features: Increased contrast Ever more narrow passbands Reflex Blocker coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux optics FWHM on each filter category carefully designed to allow for 1: 1: 1 exposures, matched for typical CMOS quantum efficiency and s n ratio Identical filter thickness to existing standards, with utmost care for parfocality Blackened edges

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