Antlia LRGB-V Pro 1.25" Astrophotography Filter Set

Experience a new level of professional astrophotography with the Antlia LRGB-V Pro 1.25" Filter Set. Specifically crafted for use with monochrome cameras featuring CCD or CMOS sensors, this comprehensive filter set is perfect for capturing vivid celestial images with precision and clarity.

Product Highlights

• Each filter is precisely manufactured on a selected substrate with a consistent thickness of 2 mm for outstanding mechanical strength and parfocality.
• Designed to enhance the transmission of key spectral lines crucial for astrophotography, including Hα, S II, and O III.
• Optimized R filter with a remarkable 95% transmission for Hα and S II lines, and doubled efficiency for O III line by overlapping B and G filter ranges.
• Features advanced multi-layer anti-reflective coatings to minimize glare and halo effects, ensuring vivid and contrasting images.
• Effectively blocks light pollution from sodium lamps, making it ideal for use even in urban settings.
• Not recommended for visual observations; these filters are tailored specifically for imaging purposes.

Key Features

• Professional-grade LRGB filters with equal weighting for R, G, and B channels.
• High transmission rates for crucial astrophotography bands: Hα, S II, and O III.
• Efficient light pollution blocking capabilities.

Technical Specifications

• Filter Type: LRGB bandpass filters
• Filter Diameter: 1.25"
• 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
• Blocking Light Pollution: Sodium lamps (598 nm, 589.6 nm)
• Surface Quality Index: 60/40 (MIL-O-13830 standard)
• Parallelism: <30"
• Execution Accuracy (RMS): λ/4 or better
• Frame: Black, anodized
• Thread: M28.5x0.6

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)

Warranty

The Antlia LRGB-V Pro filters come with a three-year manufacturer's warranty, ensuring peace of mind against delamination of the filter and substrate.