Antlia LRGB Filter Set 2” (50.8mm) – Astrophotography
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Vai al moduloAntlia LRGB Filters 2" (50.8mm) for Deep-Sky Astrophotography
The Antlia LRGB 2" (50.8mm) filter kit is engineered for deep-sky astrophotography with monochrome CCD and CMOS cameras. Designed for maximum contrast and high spectral separation, it delivers balanced color reproduction and high light transmission, making it ideal for KAF/KAI sensors and modern CMOS sensors such as Sony IMX and G-Sense.
Optimized Spectral Separation and 1:1:1 RGB Balance
The set divides the spectrum into four components: Luminance (L), Red (R), Green (G), and Blue (B). Its near 1:1:1 RGB design allows equal exposure ratios across channels (within approximately 10%), simplifying image acquisition and post-processing workflow.
OIII emissions are transmitted efficiently through the blue and green filters, enhancing nebular detail and preserving natural color rendering. The gap between green and red filters effectively blocks the primary sodium light pollution line at 589nm, improving color separation and contrast.
Optimized for Modern CCD and CMOS Sensors
Antlia LRGB filters are optimized for KAF/KAI CCD sensors, Sony IMX CMOS sensors, and G-Sense sensors, ensuring natural color saturation and high signal efficiency. Guaranteed >95% transmission maximizes photon throughput and reduces total integration time.
These filters are not recommended for visual deep-sky observation and are not suitable for solar imaging.
Premium Optical Construction
Manufactured from monolithic, non-glued optical glass, each filter features double-sided polishing and multi-layer nano-coating. The perimeter is optically blackened by hand to minimize stray light and halo formation, enhancing image contrast in long-exposure astrophotography.
Technical Specifications
| Transmission | >95% |
| Surface Quality | 60/40 (MIL-O-13830) |
| Polishing | Double-sided |
| Flatness | 1/4λ |
| Parallelism | 30″ |
| Optical Density | OD3 @ 300–1050nm |
| Thickness 2" (50.8mm) | 2mm ± 0.05mm |
| Material | Monolithic optical glass |
| Thread (mounted) | 2” (M48 x 0.75) |
The Antlia LRGB 2" filter set is a professional solution for astrophotographers seeking balanced RGB color performance, high transmission efficiency, and improved light pollution control in deep-sky imaging.