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224 EUR
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price without VAT: 182 EUR
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 Shop online:
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Shop in Warsaw (qty):
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Shop in Chorzow (qty):
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Astronomik H-alpha 12nm CCD Clip-Filter EOS M (Astronomik, SKU: 10204090 / 8h00s2) is a narrowband emission line filter designed for imaging hydrogen nebulae. It significantly increases the contrast between objects emitting at the H-alpha line (656nm) and the sky background, enabling detailed imaging from both light-polluted and dark observing sites.
• 12nm narrowband H-alpha filter
• maximizes contrast at 656nm
• complete blocking of sodium (Na) and mercury (Hg) vapor lamp emissions, natural airglow and most moonlight
• effectively blocks unwanted radiation outside 656nm from UV to IR
• especially suitable for DSLR cameras with CMOS sensors and CCD cameras with normal or high dark current
• preferred for cameras with integrated guiding sensors (more guide stars compared to 6nm version)
• integrated IR blocking layer (CCD version)
• parfocal with other Astronomik filters
• diffraction-limited design – no loss of resolution or contrast
• Astronomik MFR coating providing excellent out-of-band blocking and no halos
• strict quality control before shipment
• Astronomik H-alpha 12nm CCD Clip-Filter EOS M
• high-quality, durable filter storage box
• spectral line: H-alpha (656nm)
• bandwidth (FWHM): 12nm
• guaranteed transmission >90% at 656nm
• typical transmission 96% at 656nm
• recommended focal ratio range (MFR): f/3 to f/∞
• glass thickness: 1mm
• finely polished optical glass free from streaks, internal stress and bubbles
• coating: Astronomik MFR
• fully resistant to high humidity and aging effects
The Astronomik H-alpha 12nm CCD filter enables high-contrast imaging of red emission nebulae even under heavy light pollution. The filter must not be used for solar observation.
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