Celestron 1.25" OIII Narrowband Filter (#93623) - Baader OEM (Very Good)
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Celestron 1.25" OIII Narrowband Filter (#93623) - Baader OEM (Very Good)
Up for sale is a Celestron 1.25" OIII Narrowband Filter (Part #93623). As many experienced visual observers know, this specific series was manufactured by Baader Planetarium for Celestron, and the included plastic jewel storage case is explicitly stamped with the Baader name. It isolates the two doubly-ionized oxygen lines (496nm and 501nm) while heavily suppressing the rest of the visual spectrum to completely block light pollution. It delivers extreme, ink-black backgrounds, making emission and planetary targets like the Veil Nebula, Ring Nebula, and Dumbbell Nebula show incredible structure. The filter is in very good condition. The planeoptically polished glass is clean, the hard coatings are entirely pristine, and the threads mount perfectly to any 1.25" eyepiece.
Shipping: Free shipping within the CONUS.
Payment: PayPal (Please add 3% if using Goods & Services).
Up for sale is a Celestron 1.25" OIII Narrowband Filter (Part #93623). As many experienced visual observers know, this specific series was manufactured by Baader Planetarium for Celestron, and the included plastic jewel storage case is explicitly stamped with the Baader name. It isolates the two doubly-ionized oxygen lines (496nm and 501nm) while heavily suppressing the rest of the visual spectrum to completely block light pollution. It delivers extreme, ink-black backgrounds, making emission and planetary targets like the Veil Nebula, Ring Nebula, and Dumbbell Nebula show incredible structure. The filter is in very good condition. The planeoptically polished glass is clean, the hard coatings are entirely pristine, and the threads mount perfectly to any 1.25" eyepiece.
- Includes the original Celestron/Baader-stamped plastic jewel case.
Shipping: Free shipping within the CONUS.
Payment: PayPal (Please add 3% if using Goods & Services).
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