ZWO LRGB Filter Set 2 inch is specially designed for monochrome astro cameras and offers four high-quality interference filters: Red, Green, Blue and UV/IR block. Thanks to the 2 inch size, you maximize light throughput and reduce exposure times, while the anti-reflective multi-coating and IR block deliver sharp, natural colors.
Key benefits
✓ Four high-quality interference filters (R, G, B, L) for true color fidelity
✓ UV/IR block L-filter prevents blurriness from unwanted IR light
✓ Multi-coating anti-reflective layers for minimal reflections and ghosting
✓ Finely optically polished glass for maximum brightness and contrast
✓ Notch in sodium D-lines prevents light pollution from street lighting
✓ 2 inch format for short exposure times and full-frame compatibility
Practical application
Use this set with a ZWO ASI mono camera and a 2 inch filter wheel (10 mm filter distance to sensor) for LRGB deep-sky or planetary photography. The filters are parfocal, so you don’t need to refocus when switching between channels.
Technical specifications
- Format: 2 inch filters (50.8 mm)
- Filters: Red, Green, Blue, Luminance (UV/IR block)
- Coating: multi-layer anti-reflection (>92% transmission)
- Glass thickness: polished, 2 mm
- Housing: anodized aluminum
- Special feature: notch at sodium D-lines
- Application: photographic, not visual
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