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dry argon gas
and reliable optical system designed for amateur astronomers eager to explore deep space and planetary detail
Item Number EPWP8214–01
low beam and red mode settings
Nebula Filter Oxygen III 2.0-inch spo-enabled dry argon gasExplore Scientific Nebula Filter 1. 25" O III Range from 483nm to 511nm with peak at 496nm. Transmission 96. 7% Oxygen III This is the highest contrast Nebula Filter in the series, a line filter for only the two emission lines of oxygen. A great choice for observations of supernova remnants and other nebulae that glow in OIII. Other types of objects that glow in all parts of the visible spectrum (e. g. galaxies) are reduced visibly, but some normally
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