1.25" Orion H-Alpha Extra-Narrowband Filter
by Orion
Our Price: $134.99
Availability: Usually ships in 1-2 business days
Category: Digital Camera
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Digital Photo Product Details
Manufacturer: OrionProduct features:
- Take high-contrast CCD images of emission nebulas in full moonlight or in extreme light pollution with this specialized extra narrowband h-alpha astrophotography filters
- Astrophotography filter provides 90% transmission at H-alpha line of 656.3nm and very narrow bandpass of 7nm
- Reveals subtle nebular details which are usually washed out by contrast-killing broadband light
- Also works great in conjunction with other filters for more advanced astrophotography techniques
- Astrophotography filter threads into standard 1.25" camera nosepiece, Orion Nautilus 1.25" Filter Wheel or Orion Multiple 1.25" Filter Wheel
Description of 1.25" Orion H-Alpha Extra-Narrowband Filter
Designed exclusively for deep-sky imaging of emission nebulas with CCD cameras, this high-performance filter transmits 90 percent of light at the hydrogen-alpha line of 656.3nm and has a very narrow full width at half-maximum (FWHM) bandpass of 7nm. It blocks out all other light, including artificial light pollution and moonlight. It also blocks infrared (IR) light. The result is a dramatic boost in contrast, revealing subtle nebular details that are usually washed out by contrast-killing broadband light. Stars come out tight and sharp.Telescope Accessories
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