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The closer you move the transmitter coil to the piece of metal
Featuring true diffraction-limited optics with a wide-field f/6
Explore Scientific’s dual speed
Eye-catching fire engine graphics
Nebula Filter Oxygen III 1.25-inch eclipse The closer you move theExplore 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
