The Optolong L-Synergy filter is a dual 7nm narrowband solution designed for DSLR cameras, color CMOS sensors, and CCD cameras. It supports telescope systems with an F-ratio of F3.3 or higher. Specifically engineered for color camera users, it allows capturing high-quality emission nebulae images without switching to a monochrome camera or purchasing additional SHO filters. L-Synergy combines traditional Ha and OIII narrowband technology with a dual-filter setup of Ha & OIII plus SII & OIII. This precise combination overcomes the limitations of color cameras in narrowband imaging, delivering Hubble Palette-style deep-sky results comparable to monochrome SHO systems. The filter provides professional-level narrowband imaging with minimal investment.
Selective Transmission
The L-Synergy filter transmits only the nebula emission lines OIII (500.7nm) and SII (672.4nm) while blocking other light-polluting emission lines. This selective transmission creates a darker sky background and significantly improves contrast and signal-to-noise ratio (SNR), allowing the fine details of emission nebulae to stand out in images.
Optimized for Light Pollution
Even in heavily light-polluted environments, L-Synergy isolates the target emission lines and filters out unwanted artificial light. This makes it possible to capture clean and detailed deep-sky images without interference from urban lighting.
Minimized Star Halos
After years of technical refinement, the filter has been designed to reduce bright star halos while maintaining maximum effective transmission of nebula emission lines. This ensures sharper and clearer images of the nebulae.
Advanced Optical Design
The filter is optically optimized based on the spectral characteristics of celestial emission lines and common sources of light pollution. It preserves SII and OIII nebula colors while blocking most unwanted light. Consistent high transmission across both SII and OIII bands allows precise capture of nebula emissions, producing professional-quality astrophotography results.
The Optolong L-Synergy filter is an accessible solution for amateur and advanced astrophotographers who want to achieve detailed narrowband deep-sky images without switching to monochrome equipment.
