Astronomik Filters OIII 12nm CCD MaxFR 31mm (67058)

The MaxFR series of filters is specifically optimized for astrophotography with ultra-fast telescopes, such as Celestron RASA systems or Takahashi's Epsilon astrographs. These filters are designed to perform exceptionally well with fast optical systems, ensuring precise and high-quality imaging.

This series includes filters for the three most important emission lines in astrophotography: OIII, H-alpha, and SII. Each filter is available with a full width at half maximum (FWHM) of either 12nm or 6nm, allowing users to select the level of spectral isolation that best suits their needs. These narrowband filters enhance contrast by isolating specific wavelengths, making them ideal for capturing detailed images of nebulae and galaxies.

Applications and Features

The MaxFR filters are highly effective for photographing nebulae and galaxies, thanks to their ability to isolate specific emission lines while reducing the impact of light pollution. However, they are not visually useful and are not intended for observing twin stars, the Moon, or planets. Their design prioritizes astrophotographic performance over visual observation.

This series is part of the MaxFR line of line filters, which are engineered to meet the demands of modern astrophotographers using fast telescopes. With their robust aluminum mounts and precise coatings, these filters deliver reliable performance for capturing stunning deep-sky images.

Specifications

• Capacity: 31 mm
• Central Wavelength: 501 nm
• Half-Value Width: 12 nm
• Frame Type: Ring
• Mount Material: Aluminum
• Coating: MRF (Multi-layer Reflective Coating)