Antlia LRGB-V Pro 36 mm unmounted

The Antlia LRGB-V Pro L is a comprehensive set of LRGB filters designed specifically for professional astrophotography setups. Compatible with both monochrome cameras equipped with CCD and CMOS sensors, these filters offer exceptional performance and versatility.

Crafted with meticulous attention to detail, each filter in the set is created using a carefully selected 2 mm substrate. This not only ensures excellent mechanical strength but also guarantees full parafocalicity. According to the manufacturer's recommendation, it is advisable to consider temperature fluctuations and periodically check focus, approximately once every hour or two. With a focus on optimizing the transmission of crucial spectral lines for astrophotography, such as Hα, S II, and O III, the designers have invested significant effort into selecting the appropriate bandwidths and intervals. As a result, the R filter achieves an impressive 95 percent permeability for the Hα and S II lines. Moreover, the overlapping operation ranges of the B and G filters enable a doubling of the recording efficiency for the O III line.

The Antlia LRGB-V Pro filters possess more than just high optical efficiency. By separating the G and R channels, they effectively block the primary lines of light pollution emitted by sodium lamps. When combined with the multi-layer anti-reflective coatings, these filters enable the capture of vivid and contrasting images even in the vicinity of large urban centers.

Important note: It is essential to understand that Antlia LRGB-V Pro filters are not recommended for visual observations.

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

Professional astrophotographic filters: These filters are designed with equal weights for the R, G, and B channels, making them ideal for use with CMOS and CCD sensors.

Advanced multi-layer anti-reflective coating: The filters are equipped with this coating, which effectively reduces secondary glare and the halo effect, enhancing image quality.

High transmission for key spectral bands: The R filter achieves high permeability for the Hα and S II bands, while the B and G filters offer excellent transmission for the O III band.

Effective light pollution blocking: The G and R channel separation, combined with the filters' anti-reflective coatings, blocks light pollution emitted by sodium lamps, enabling clear imaging even near urban areas.

Technical Specifications:

• Filter Type: LRGB bandpass filters
• Filter Diameter: 36 mm
• Filter Thickness: 2 ± 0.05 mm
• Filter Shape: Round
• Parfocalism: Yes
• RGB Channel 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

Elements included in the Set:

• 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)

Guarantee:

The Antlia LRGB-V Pro filters come with a three-year manufacturer's warranty, covering filter delamination and substrate defects.