Astronomik OIII 12nm CCD MaxFR 36mm Filter – High Contrast Imaging for Nebulae

Experience exceptional contrast and detailed imaging with the Astronomik OIII 12nm CCD MaxFR 36mm filter, designed specifically for imaging OIII emission nebulae. This filter is ideal for deep-sky astrophotography, enhancing visibility of nebulae in light-polluted areas or at dark sky locations.

Perfectly designed for 36mm filter wheels from major brands including ZWO, QHY, SBIG, and Moravian, the filter's blackened edges and protective ring design prevent stray light and ensure mechanical protection.

Why Choose the Astronomik OIII 12nm Filter?

The Astronomik OIII CCD Filter offers an unparalleled contrast boost by blocking all unwanted wavelengths from UV to infrared, allowing only the OIII emission line at 501nm to pass through. With a full width at half maximum (FWHM) of 12nm, this filter is optimized for CMOS and CCD cameras, delivering impressive results, especially in light-polluted conditions.

This filter’s high transmission rate of 95% ensures that even faint objects stand out against a dark background. It also allows more stars to appear in the field of view compared to narrower bandwidth filters, providing more guiding stars for dual-chip guiding setups.

Key Features:

• Guaranteed transmission of more than 90% at the OIII line (501nm)
• Full width at half maximum (FWHM): 12nm
• Blocks all unwanted light from UV to infrared
• Compatible with optical systems up to f/3 thanks to MFR coating
• Durable design: moisture-resistant, scratch-proof, and non-aging
• Parfocal with other Astronomik filters
• High-quality 1mm thick optical glass substrate

Imaging with Narrowband Filters

For astrophotographers battling light pollution, narrowband emission-line filters like the Astronomik OIII 12nm offer a powerful solution. Capture stunning details of planetary nebulae, supernova remnants, and star-forming regions, even under challenging urban or moonlit skies.

When combined with H-alpha and SII filters, the OIII filter completes your narrowband set, allowing you to create striking false-color Hubble-style images (HSO) from even the most light-polluted environments.

Optimized Performance with DSLR and CCD Cameras

This filter is tailored for use with modern DSLR and CCD cameras. It delivers superior results when imaging faint nebulae under heavy light pollution by allowing only the OIII line to pass through, ensuring a dark background and high contrast for your images.

Consider the 6nm Filter for Star-Dense Regions

If you frequently photograph dense star fields, the Astronomik OIII 6nm filter may be a better choice. Its narrower bandwidth reduces the number of stars in the field by a factor of ~2, providing clearer views of faint nebulae against the starry backdrop.

Order Now

Discover the universe with the Astronomik OIII 12nm CCD MaxFR 36mm filter. Experience unparalleled contrast and high-quality imaging. Order yours today for your astrophotography needs!