Antlia LRGB-V Pro 2

The Antlia LRGB-V Pro L is a complete set of LRGB filters specifically designed for professional astrophotography setups, catering to both monochrome cameras with CCD and CMOS sensors.

Each filter included in the set is meticulously crafted on a carefully chosen 2mm substrate, ensuring not only robust mechanical strength but also full parafocal capability. It is recommended, in accordance with the manufacturer's guidelines, to take into account temperature fluctuations and periodically check focus, roughly every one to two hours. By paying meticulous attention to these details, optimal transmission of critical spectral lines crucial for astrophotography, such as Hα, S II, and O III, has been achieved. The designers dedicated significant effort to precisely selecting the width of the transmitted bands and the intervals between them. As a result, the R filter boasts an impressive 95 percent permeability for Hα and S II lines. Furthermore, the overlapping operation ranges of the B and G filters have effectively doubled the recording efficiency of the O III line.

Beyond high optical efficiency, the Antlia LRGB-V Pro filters offer additional exceptional features. The separation of the G and R channels effectively blocks the primary light pollution emitted by sodium lamps. This, combined with multi-layer anti-reflective coatings, enables vivid and high-contrast imaging even in the vicinity of densely populated urban areas.

Please note that the Antlia LRGB-V Pro filters are not recommended for visual observations.

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

Professional astrophotographic filters with equal weights for R, G, and B channels, designed for compatibility with both CMOS and CCD sensors.

Advanced multi-layer anti-reflective coating that reduces secondary glare and the halo effect.

High transmission for the Hα and S II bands (R filter) and O III (B and G filters).

Excellent ability to block light pollution emitted by 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 (according to MIL-O-13830 standard): 60/40.
• 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 come with a three-year manufacturer's warranty, covering filter and substrate delamination.