L2 Dual-Combo Set
The L2 set contains two filters, L-eXtreme and L-Synergy. L-eXtreme is a dual-channel narrowband filter, OIII-7 nm and Ha-7 nm, transmitting only nebular OIII (500.7 nm) and Ha (656.3 nm) emission lines while blocking other light-pollution lines. It captures only OIII and H-α signals with maximum effective transmission. Years of accumulated development have optimized bright-star halos. L-Synergy is a dual-channel narrowband filter, OIII-7 nm and SII-7 nm, transmitting only nebular OIII (500.7 nm) and SII (672.4 nm) lines while blocking other light-pollution lines. It captures only OIII and SII signals with maximum effective transmission. Years of accumulated development have optimized bright-star halos.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Kit Contents | L-eXtreme & L-Synergy, Two Filters in Total |
| Bandwidth Value [Separate Specification Table for Kit] | OIII–7nm / Ha–7nm / SII–7nm |
| Filter Thickness [Separate Specification Table for Kit] | 1.85 mm |
| Transmittance Tp | >85 % |
| Blocking Range | 300–1100 nm |
| Surface Finish | 60/40 |
| Transmitted Nebular Emission Lines [L-eXtreme] | OIII500.7nm and Ha656.3nm |
| Transmitted Nebular Emission Lines [L-Synergy] | OIII500.7nm and SII672.4nm |
| Telescope System Compatibility | F3.3 or Higher |
| Parallelism [Original Manufacturing Process Description] | Greater Than 30″ |
| Surface Figure [Original Manufacturing Process Description] | Better Than λ/4 |
| Paper Box | Silver Cardboard Box |
| Plastic Box Material | PP Material |
| Plastic Box Lining | Imported High-Pressure White EVA Material |
Applications
Key Features
Datasheet
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