Nebulizer filter 2 "O-III, Explore Scientific: • as a result of using O-III line filters, many weak nebular objects become easier to see • suitable for both visual observations and photography with CCD cameras • blocks the whole spectrum of light except for the spectral line O-III • transmits a line of double ionized oxygen (496 and 501 nm)
Technical parameters
• Housing diameter: 50.8 mm • transmission of light: over 90% • height: 8 mm • weight: 15 g