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3509 zł
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price without VAT: 2852,85 zł
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Astronomik HSO 6nm Filterset 36mm (Astronomik, SKU: 10228336 / 8h11ry) is a set of three 6nm narrowband emission line filters: H-alpha, SII and OIII in 36mm unmounted format. The set enables imaging in the HSO palette, reproducing emission nebula structures in the characteristic false colors known from Hubble Space Telescope images. It is a cost-effective solution for advanced narrowband astrophotography.
• includes H-alpha, SII and OIII 6nm filters
• 36mm unmounted format
• enables imaging in the HSO (Hubble Space Telescope style) palette
• ideal for capturing faint objects in star-rich Milky Way regions
• reduces the number of stars in the image compared to 12nm filters
• suitable for cameras with very low dark current
• recommended for imaging under heavy light pollution
• Astronomik MFR coating providing excellent UV–IR out-of-band blocking, high contrast and no halos
• parfocal with other Astronomik filters
• diffraction-limited design – no loss of resolution or contrast
• strict quality control and individual spectral measurement
• H-alpha 6nm filter 36mm
• SII 6nm filter 36mm
• OIII 6nm filter 36mm
• high-quality, durable filter storage boxes
• bandwidth (FWHM): 6nm
• diameter: 36mm (unmounted)
• guaranteed transmission >90% at H-alpha (656nm)
• typical transmission 93% at H-alpha
• guaranteed transmission >90% at both SII lines (671.7nm and 673.0nm)
• typical transmission 93% at SII lines
• guaranteed transmission >88% at OIII main line (501nm)
• typical transmission 92% at OIII main line
• recommended focal ratio range: f/4 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 HSO 6nm 36mm filter set delivers high contrast and precise nebular detail even under demanding observing conditions. The H-alpha filter must not be used for solar observation.
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