Skip to Content

Celestron Oxygen III 1.25 inch Narrowband Filter for Telescopes

  • mfr: 93623
  • SKU: 93623
Out Of Stock

Available options:

  • Free standard shipping

    *Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Additional options:

Product highlights

  • Isolates the two doubly-ionized oxygen lines
  • Blocks the rest of the overall spectrum of light
  • Extreme contrast
  • Ultra hard, vacuum-deposited coating
  • Eliminates the un-natural colored halos surrounding bright stars

Celestron Oxygen III 1.25 inch Narrowband Filter for Telescopes

Celestron Oxygen III 1.25-inch Narrowband Filter for Telescopes isolates just the two doubly-ionized oxygen lines (496 and 501 nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black sky background and the faint photons of OIII light needed for detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects.

Impressive

The Oxygen filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm. This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.

Specifications

General
Size 1.25"
Filter Type Narrowband
Circular Size 31.75mm
Rotating (Lens Cap) No

Questions

Customer Questions
No Questions

Returns

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Celestron Oxygen III 1.25 inch Narrowband Filter for Telescopes

Celestron Oxygen III 1.25 inch Narrowband Filter for Telescopes SKU: 93623

  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 10.89ms
  • REVIEWS, PRODUCT
  • bvseo-msg: HTTP status code of 404 was returned; HTTP status code of 404 was returned;

Customers also viewed

Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links.
Counterweight CGEM.jpg
Celestron Counterweight for the CGEM Equatorial Mount (11 lbs/5kg)
In Stock
$99.99

Free standard shipping included

Celestron SkyPortal Wi-Fi Module
Celestron SkyPortal Wi-Fi Module
In Stock
$129.99

Free standard shipping included

Celestron Counterweight for CGE Pro Telescopes (22lb)
Celestron Counterweight for CGE Pro Telescopes (22lb)
In Stock
$139.95

Free standard shipping included

loader
Loading...