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2" Orion Oxygen-III Nebula Eyepiece Filter
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2" Orion Oxygen-III Nebula Eyepiece Filter
$155.99
 
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  • An Oxygen-III, or O-III, eyepiece filter helps reveal details and improve contrast when viewing nebulas through a telescope
  • Filter transmits close to 90% of the light corresponding to two oxygen-III spectral lines at 496nm and 501nm wavelengths
  • O-III eyepiece filter blocks virtually all other visible wavelengths of light for optimized nebula-viewing performance
  • Made with high quality optical glass in a double-threaded, anodized aluminum cell
  • Recommended for use with telescopes of 8" aperture or greater and for visual use only


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Item #  05582
Mfg Model #  05582
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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! Try the Oxygen-III telescope filter with a low-power 2" telescope eyepiece and take in the whole Veil Nebula. Wow!

Warranty

Limited 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 800-676-1343.

Product Support
Visit our product support section for instruction manuals and more
Specs
  • Thread size
    48.0mm
  • Filter use
    Deep sky
  • Bandwidth
    Narrowband
  • Warranty
    One year
Shipping Info

Orders received by noon Pacific Time for in-stock items ship the same business day. Orders 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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2" Orion Oxygen-III Nebula Eyepiece Filter
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3 The 2" 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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4.3 / 5
4.3 / 5
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5 / 5
5 / 5
Top H-Beta filter for the Money
PostedFebruary 21, 2010
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Garry
 
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I own both the 2" OIII and H-Beta filters. I have had no trouble with the threads but I have had thread problems with Lumicom and Thousand Oaks Filters with the threads will not screw into my TV EPs. I have had a Ultrablock will not screw into my TV I Barrowed from a friend. But it appears not to be limited to Orion but with others aswell. I do not see it to be a problem. You can see the Horsehead with a OIII from a dark site but a H-beta will be alot BETTER!!! The "Hook" of the horsehead is very noticable against IC 434. The Coccoon stands out against the star fields in Cygnus and can make out even more detail in M27, and the Orion Nebula as well. Overall a great Filter and a perfect Match if you own the OIII. Keep it up Orion
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Does the trick!
PostedSeptember 21, 2011
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Dango
 
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While not the most "aggressive" OIII filter I've looked though [most dim stars are still visible], this is certainly the best value I can find. It brings the veil nebula and other diffuse nebula straight from invisible to visible in my XT8 dob. I don't have easy access to a very dark sky, so effective filtering is a great help.
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3 / 5
2 inch Oxy III filter...
PostedFebruary 19, 2009
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Charles B
 
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This 2 inch filter will screw into my Televue EP, but not my Lumicon filter slide or other accys. All my other filters fit both. Be cautious because of this problem.
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