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Optolong L-eNhance passes H-alpha, H-beta and OIII emission for nebula imaging with colour astronomy cameras and DSLRs.
Nebula filter transmitting three useful emission lines
A colour-camera alternative to separate narrowband exposures
Mounted 1.25″ and 2″ editions
Choose the 1.25″ or 2″ mounted edition required by your filter wheel or holder. Check clearance and sensor coverage before ordering.