Antlia LRGB-V Pro 2

Antlia LRGB-V Pro 2: Professional Astrophotography Filter Set

The Antlia LRGB-V Pro 2 is an advanced set of LRGB filters crafted specifically for professional astrophotographers. This comprehensive filter set is compatible with monochrome cameras that use either CCD or CMOS sensors, ensuring exceptional image quality and performance.

Each filter in the set is crafted with precision on a 2mm substrate, providing both robust mechanical strength and parafocal capability. To maintain optimal performance, it is advisable to periodically check focus every one to two hours, especially considering temperature fluctuations. This attention to detail ensures superior transmission of vital spectral lines necessary for astrophotography, such as Hα, S II, and O III. The R filter achieves an impressive 95% permeability for Hα and S II lines, while the overlapping operation ranges of the B and G filters effectively double the recording efficiency of the O III line.

The filters not only excel in optical efficiency but also offer other remarkable features. The separation of the G and R channels effectively blocks light pollution from sodium lamps, and the multi-layer anti-reflective coatings allow for vivid, high-contrast imaging, even in urban environments.

Note: The Antlia LRGB-V Pro filters are not intended for visual observations.

Key Features of the Antlia LRGB-V Pro Filter Set:

• Designed for professional astrophotography with equal weights for R, G, and B channels.
• Compatible with both CMOS and CCD sensors.
• Advanced multi-layer anti-reflective coating minimizes glare and halo effects.
• High transmission for Hα and S II bands (R filter) and O III (B and G filters).
• Effective blocking of light pollution from sodium lamps.

Technical Specifications:

• Filter Type: LRGB bandpass filters.
• Filter Diameter: 2 inches.
• Filter Thickness: 2 ± 0.05 mm.
• Filter Shape: Round.
• Parfocalism: Yes.
• RGB Channels Weights: 1:1:1.
• Anti-reflective Coating: Full Multi-layer Coating (FMC).
• Maximum Transmission for L Filter: >95%.
• Transmission Range for L Filter: 420 - 715 nm.
• Maximum Transmission for R Filter: ~95%.
• Transmission Range for R Filter: 600 - 710 nm.
• Maximum Transmission for G Filter: ~95%.
• Transmission Range for G Filter: 480 - 580 nm.
• Maximum Transmission for B Filter: ~95%.
• Transmission Range for B Filter: 420 - 520 nm.
• Light Pollution Blocking: Sodium Lamps (598 nm, 589.6 nm).
• Surface Quality Index: 60/40 (according to MIL-O-13830 standard).
• Parallelism: <30 arcseconds.
• Execution Accuracy (RMS): λ/4 or better.
• Frame: Black, Anodized.
• Thread: M48x0.75.

Set Components:

The Antlia LRGB-V Pro Filter Set includes:

• Antlia LRGB-V Pro L Filter (Luminance)
• Antlia LRGB-V Pro R Filter (Red)
• Antlia LRGB-V Pro G Filter (Green)
• Antlia LRGB-V Pro B Filter (Blue)

Warranty:

The Antlia LRGB-V Pro filters are backed by a three-year manufacturer's warranty, covering delamination of the filter and substrate.