1.25" Orion Oxygen-III Nebula Eyepiece Filter
Item #05581
The 1.25" Orion Oxygen-III nebula Telescope Filter essentially boosts the contrast you see in nebulas bringing out detail you couldn't see before.
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More Info
- Orion's Oxygen-III (O-III) eyepiece filter reveals wondrous details when viewing cloudy nebulas
- Filter transmits close to 90% of the light corresponding to 2 oxygen-III spectral lines at 496nm and 501nm for enhanced nebula detail in visual views
- Completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized
- Eyepiece filter features high quality optical glass in a double-threaded, metal filter cell
- Recommended for use with telescopes of 8" aperture or greater for best results and for visual use only
You can't turn up the luminosity on nebulas, but you can crank up the contrast between them and the sky to reveal more of their wondrous detail. Our Oxygen-III telescope filter provides extremely selective filtration to bring out elusive detail in diffuse and planetary nebulas. It does so by transmitting close to 90% of the light corresponding to the two oxygen-III spectral lines at 496nm and 501nm while completely blocking virtually all other wavelengths. The results are remarkable. You'll see more detail than you ever could before in nebular gems such as the Swan, Ring, Dumbbell, Helix, and Eagle, to name a few. The O-III provides an even greater contrast boost on some objects than the UltraBlock narrowband telescope filter. And for nebulas, every little bit helps!
WarrantyLimited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.
WarningPlease note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.
Product SupportVisit our product support section for instruction manuals and more
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Important Shipping Information
Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.
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