Orion 1.25" Extra-Narrowband Tri-color CCD Filter Set
R 16,718
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Orion 1.25" Extra-Narrowband Tri-color CCD Filter Set
Shoot high-contrast color CCD images of emission nebulas from light polluted or moonlit skies with these specialized astrophotography filters
Filter Set includes three dichroic, 1.25" extra-narrowband astrophotography filters: H-alpha, O-III, and S-II, all with metal filter cells
These filters transmit specific wavelengths emitted by emission nebulas and block all other light -including light pollution - so you can capture astrophotos in less than ideal conditions
Each Orion Extra-Narrowband filter features 90% transmission at the specified critical wavelength and a narrow 7nm bandpass (FWHM) for great results
Ideal for use with monochrome Orion StarShoot and Parsec astrophotography cameras to acquire stunning tri-color vistas of the night sky
Imaging with extra-narrowband filters is the latest technique used by amateur astronomers for producing striking, high-contrast color CCD astroimages of emission nebulas. And it works even in heavily light polluted or moonlit skies. What you need is this three-filter set, which consists of Orion Hydrogen-alpha (#5587), Oxygen-III (#5578), and Sulfur-II (#5579) extra-narrowband imaging filters (1.25"). These specialized "line" filters transmit only the specific wavelengths of light important in emission nebulas, while blocking out all the rest. The filters are designed for use with the Orion StarShoot Deep Space CCD Monochrome Imager II (#52083) and Manual 5-Filter Wheel (#5520), or with similar cameras. The H-alpha filter has a transmission of 90% at the hydrogen-alpha line of 656.3nm. The O-III filter passes light at the 500.7nm wavelength (the Oxygen-III line) with very high 90% transmission. And the S-II filter passes light at the 672.4nm wavelength (the Sulfur-II line) with 90% transmission. All three filters have a FWHM bandpass of 7nm. So if you're ready to go beyond RGB imaging and capture your favorite nebulas in a revealing new light - no matter how light-polluted your skies -- add our Extra-Narrowband CCD Imaging Filter Set to your imaging repertoire! Includes a protective plastic case for each filter. One-year limited warranty.