Altair Ha Sii Oiii DualBand ULTRA 6nm Filter COMBO
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Ultimate Imaging Combo: This set includes two high-performance Altair Dual-Band ULTRA filters, each with a precise 6nm FWHM Bandpass, perfect for astrophotography.
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Combo Contents: The package contains the 2" DualBand 6nm Ha Oiii Filter (Code: F200DB6NM-Ha-OIII) and the 2" DualBand 6nm Sii Oiii Filter (Code: F200DB6NM-SII-OIII).
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Versatile Use: Ideal for capturing celestial objects in moonlit, light-polluted, or dark-sky conditions using a color CMOS camera, with total control over imaging channels.
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Advanced Coating Technology: Equipped with Altair V2 coatings, these filters effectively counter LED light pollution, offering deep blocking factors (OD>6 below 440nm, OD5 in visual range).
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Precision Transmission Rates: Each filter provides 93% transmission for Oiii (6nm) and Ha and Sii wavelengths (5.5nm), ensuring high-quality images with tight tolerances.
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Certified Quality Assurance: Each filter undergoes rigorous spectrographic testing with 0.1nm resolution, guaranteeing unparalleled quality and avoiding the inaccuracies of foreign filters.
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Enhanced Contrast and Suppression: The filters transmit key emission nebulae wavelengths while suppressing unwanted light, yielding exceptional contrast in challenging conditions.
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Hubble Style Imaging Potential: Combining both filters allows for double Oiii data capture, enabling true SHO Hubble style imaging with color cameras.
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Multi-Compatibility: Suitable for use with One Shot Colour (OSC) CMOS and mono cameras for luminance data.
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UVIR Blocking and Anti-Reflection Coating: Ensures high contrast and durability, suitable for both modified and un-modified DSLR cameras.
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Optimal Focal Ratios: Performs best at F4.8 or slower, but usable up to F3.6 with minimal impact on contrast.
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Standard 2" Filter Thread: Compatible with standard M48x0.75mm thread, fitting various holders and adapters.
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Filter Specifications: Both filters feature a dual-band design with specific central wavelengths and tolerances, encased in 1.85mm thick optical glass and Si02 hard overcoat.
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Frequently Asked Questions: Clarifies the functionality of OSC Narrowband filters, compatibility with cameras, and the concept of DualBand filtering.
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Product Availability Note: Due to high demand, orders may be temporarily suspended to maintain production quality. Specifications and prices subject to change.
Safety Reminder: Always follow proper guidelines and precautions when using astrophotography equipment.
