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Orion Telescopes
2" Orion Extra Narrowband Filter Set
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  • These specialized astrophotography filters pass select wavelengths and essentially block all other wavelengths of light, including light pollution, so you can capture images in less than ideal conditions
  • Ideal for use with Orion monochrome Parsec and StarShoot astrophotography cameras. Metal filter cell construction.
  • H-Alpha filter transmits 90% of light at 656.3nm wavelength
  • S-II filter highlights deep red Sulfur-II wavelength features of emission nebulae
  • O-III filter highlights blue/green Oxygen-III wavelength features of emission nebulae

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Item #  25545

Orion's 2" Extra Narrowband Hydrogen-Alpha, Oxygen-III, and Sulfur-II filters are designed to enhance the contrast of emission nebulae in monochrome astrophotography. They are perfect for using with a monochrome CCD camera like Orion's Parsec 8300M Astronomical Imaging Camera.

Imaging with extra-narrowband filters is the latest technique used by amateur astronomers for producing striking, high-contrast color CCD astrophotos of emission nebulae. These specialized 'line' filters transmit only the specific wavelengths of light important in these nebulae, while blocking out all the rest. They blacken the background sky to produce high-contrast images, even in heavily light-polluted or brightly moonlit skies. The filters can be used separately or in combination with a filter wheel for advanced tri-color astrophotography.

Capture your favorite nebulae in a revealing new light — no matter how light-polluted your skies. Add Orion's 2" Extra Narrowband CCD Filters to your imaging repertoire! Includes a protective plastic case for each.


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.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Product Support
Visit our product support section for instruction manuals and more
  • Warranty
    One year
2" Oxygen-III filter
2" Sulfur-II filter
2" Hydrogen-alpha filter
Plastic case for each

Orders received by 1pm Eastern Standard Time for in-stock item 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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