Optolong L-eNhance
The relentless spread of urbanization and its associated light pollution have become a growing problem for astro photographers. The current fixes to the problem can be expensive and might include the purchase of a monochrome camera, several types of narrowband filters and a filter wheel.
The L-eNhance filter provides an economical and practical fix for amateurs. It is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and CCD cameras.
Bandpass
Optolong specially designed and optimized their dual-band L-eNhance filter according to the characteristics of celestial body emission lines and features of the light pollution spectrum span. This retains the prominent color of nebula RGB while blocking out most light pollution.