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325 EUR
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price without VAT: 264 EUR
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The Astronomik OIII 6nm CCD Clip-Filter EOS APS-C (SKU: 10201093 / 8h00nd) is a narrowband emission filter designed for imaging nebulae that emit light in the oxygen [OIII] lines. It captures radiation at wavelengths of 496 nm and 501 nm, significantly increasing contrast between the object and the sky background. The clip-filter design allows the filter to be mounted directly inside Canon EOS APS-C camera bodies.
The filter effectively blocks light pollution from sodium and mercury vapor lamps, natural airglow and a large portion of moonlight. This allows high-contrast nebula imaging both from heavily light-polluted locations and under dark skies.
The narrow 6 nm transmission band efficiently suppresses unwanted light at other wavelengths from ultraviolet to infrared. It is particularly useful for imaging faint objects in star-rich regions of the Milky Way and in areas with extreme light pollution.
The OIII filter enables imaging of planetary nebulae, star-forming regions and supernova remnants. Combined with H-alpha and SII filters it allows emission-line imaging using the HSO palette.
• narrowband OIII filter for imaging emission nebulae
• transmission band covering the [OIII] lines at 496 nm and 501 nm
• bandwidth: 6 nm
• clip-filter design for Canon EOS APS-C cameras
• effective suppression of light pollution
• very high contrast imaging of nebular structures
• blocking of unwanted light from UV to IR
• Astronomik MFR coating for high transmission and minimal stray light
• Astronomik OIII 6nm CCD Clip-Filter EOS APS-C
• durable protective filter box
• type: OIII narrowband filter
• emission lines: 496 nm, 501 nm
• bandwidth (FWHM): 6 nm
• guaranteed transmission at OIII line (501 nm): over 88%
• typical transmission at OIII line: 92%
• compatibility: Canon EOS APS-C (clip-filter)
• glass thickness: 1 mm
• material: finely polished optical glass free of streaks, internal stress and bubbles
• coating: Astronomik MFR
• focal ratio range: f/4 – f/∞
• coating durability: highly resistant to scratches, humidity and aging
• optical characteristics: parfocal, diffraction-limited design
The Astronomik OIII 6nm CCD filter enables astrophotographers to capture oxygen-emission nebula structures with extremely high contrast and fine detail even under challenging observing conditions.
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