Explore Scientific 1.25" OIII Nebula Filter
The 1.25" OIII Filter by Explore Scientific is a line filter, allowing only the two emission lines of oxygen to pass through. This filter is a fantastic choice for exploring supernova remnants and other nebulae that glow in OIII. When used on objects that glow in all parts of the visible spectrum, such as galaxies, this filter dims all emissions except for oxygen. In other words, some areas will suffer from the addition of an OIII filter, while other areas that may normally be difficult to see will become visible when viewed through the OIII filter.
The Explore Scientific 1.25" OIII Filter has a transmission of 96.7% from 483nm to 511nm. Peak transmission is 496nm. This filter is mounted in a 1.25" metal cell and fits all standard 1.25" eyepieces and filter wheels.
Explore Scientific 1.25" OIII Filter
- Plastic Storage Case
- Beauty Box
Dimensions & Specifications
Filter Size: 31.75 mm (1.25")
Filter Type: Narrowband Deep-Sky
Filter Shape: Round
Mounted or Unmounted: Mounted
We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.
Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when product is registered on explorescientific.com within 60 days of purchase.
Return & Exchange Policy
At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.
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