Narrowband Filters

The filters are available individually, as a set or with custom specifications

Chroma narrowband filters are designed to isolate specific astronomical emission lines with high contrast and minimal background interference. By tightly controlling band placement and blocking unwanted light, these filters enable detailed imaging of nebulae and other emission-rich objects, even under light-polluted skies.

Narrowband Filter Sets

Chroma offers matched narrowband filter sets optimized for consistent performance across common emission lines. Sets are available in multiple bandwidths to support different imaging conditions and system requirements. Each set consists of an H-alpha (Hα), Oxygen III (OIII), and Sulfur II (SII) filter.

SII Ha OIII – 3nm

Ultra-narrow bandpass sets designed for maximum contrast and background suppression, ideal for imaging under light-polluted skies or during bright moon phases.