Optolong L-Quad Enhance Filter L-QEF For Telescope

Optolong L-Quad Enhance Filter 2''

This is effectively cosidered as V2 L-Pro Filter

L-QEF cuts out light pollution from mercury and sodium lamps and produces a nice broadband image with minimal colour cast. This filter is a broadband filter that suppresses light pollution wavelengths. It is good for star clusters, dark and reflection nebulae, and galaxies from light-polluted skies

Bandpass Comparison Of L-Pro VS L-QEF - More Cutoff At 580-620NM Bandpass