HEUIB-II Enhanced H-Alpha

The IDAS HEUIB-II is a UV/IR-cut filter specifically enhanced for H-alpha nebula imaging at 656.3nm wavelength. Designed for modified DSLRs and one-shot color CCD astronomical cameras, this filter reduces interference from the red end of the spectrum to isolate and enhance faint H-alpha emission nebulosity while maintaining natural color balance in broadband images. Utilizing IDAS's advanced IGAD (Ion-Gun Assist Deposition) coating technology, the HEUIB-II provides superior thermal stability and minimal spectral shift, making it ideal for capturing emission nebulae with enhanced contrast compared to conventional UV/IR-blocking filters.