Astronomik H-alpha 6nm CCD MaxFR Clip-Filter Nikon XL

Optimized Narrowband Emission Line Filters for Fast Optical Systems

Experience unparalleled performance in deep-sky imaging with Astronomik’s MaxFR filters, designed specifically for fast optical systems like Celestron RASA and Takahashi Epsilon Astrographs. These filters are available in 6nm and 12nm bandwidths (FWHM), providing high-contrast imaging for H-alpha, OIII, and SII emission lines.

Why Choose MaxFR H-alpha, OIII, and SII CCD Filters?

• Available in 6nm and 12nm FWHM for maximum flexibility
• Designed for use with fast optics (f/1.7 and higher)
• Highest contrast with minimized stray light and needle-sharp stars
• Ideal for astrophotography of nebulae and planetary nebulae

Maximum Contrast and High Transmission

Astronomik MaxFR filters use advanced MFR Coating technology to provide the best out-of-band blocking, from UV to IR. This technology ensures you experience no halos and maximum contrast, even in heavily light-polluted environments.

Imaging with Narrowband Filters

When imaging from light-polluted areas, narrowband filters such as H-alpha and OIII allow you to block unwanted light pollution. H-alpha is perfect for capturing the red glow of nebulae, while OIII brings out the blue-green light of planetary nebulae. Pair these filters with an SII filter to create stunning, Hubble-style images of deep-sky objects.

Features of Astronomik Filters

• MFR Coating: Usable on instruments down to f/1.4 for 12nm filters and f/2 for 6nm filters
• Optically Polished Glass: Stress-free and striae-free substrate
• Parfocal: No refocusing needed when switching filters
• Durability: Scratch-resistant, moisture-proof, and long-lasting performance
• Integrated Blocking: Complete UV to IR blocking without additional filters
• Available Sizes: From 1.25" to 50mm square

Common Questions

• Which FWHM should I choose, 6nm or 12nm? If you're imaging in heavily light-polluted areas, 6nm offers better contrast, while 12nm allows for more stars in your field of view.

Expand your astrophotography capabilities with Astronomik MaxFR filters, designed to provide exceptional results even in the most challenging conditions. Perfect for imaging nebulae, planetary nebulae, and star-forming regions with stunning clarity.