MANUFACTURER:Baader Planetarium. FILTER MOUNTED:Unmounted. FILTER THICKNESS (WITHOUT CELL):2 mm. FILTER SIZE:47.4 mm (2" w/o cell). SINGLE OR SET?. :Single Filter. FILTER USAGE:Focusing/dust protection.
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Baader S-II 1¼" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized. Type of Filter F/2 Highspeed. FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio.
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The ultra-thin filter cell results in the maximum possible clear aperture, in order to minimize vignetting. Baader balances each dielectric coating stack to avoid the ghosts and annoying halos that plague other manufacturer’s filters.
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Filter Usage: O-III, CCD, IR-Cut. Filter Size: 2". Filter Clear Aperture: 45mm. Key Features. Key Specification. High quality glass construction to assure quality and performance. Wave p-v over the entire surface: 1/4.
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It also enhances the great-red-spot on Jupiter and contrast between the belts and also between zones on Saturn. The dark-blue filter is multi-coated to render reflection-free images. Also, both sides are 7-layer AR coating with only 0.25% residual reflection per surface.
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Baader 7.5 nm Solar Continuum 2" Filter, CWL 540nm with 2" screw-in thread. Lens systems - including those of apochromats, catadiopters or eyepieces - are traditionally optimized for the spectral range around 540nm, since this is where our eye has the highest sensitivity.
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Features: Baader 2" Double Polarising Filter With Rotating Filter Cell. Specifications: Baader 2" Double Polarising Filter With Rotating Filter Cell. Baader 2" Double Polarising Filter With Rotating Filter Cell.
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