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Svbony SV227 2/1.25inch Filter 5nmH-Alpha SII-CCD OIII-CCD Narrow Band for Astronomy Telescope Deep Space Planetary Photography
: In stock
Regular price
$0.00
$211.41
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SPECIFICATIONS
Blocking: ≥OD5
Brand Name: svbony
CWL: 672nm
Clear Aperture: 44mm
FWHM: 5nm
Filter Type: Narrow Band Filter
High-concerned chemical: None
Model Number: SV227
Net Weight: 12.5g / 0.44oz /0.027lb
Origin: Mainland China
Peak transmittance: ≥90%
Single Thread: Yes
Size: 2inch(50.8mm)
Surface Quality: 60/40
Surface parallelism: 1/4
Thickness: 1.85mm
Thread: M48x0.75
Type: Monocular
Wavelength Range: 300-1000nm
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SVBONY SV227 2inch Filter 5nmH-Alpha 5nmSII-CCD 5nmOIII-CCD Narrow Band for Astronomy Telescope Deep Space Planetary Photography
If you’re looking for a 2” narrowband passes filter, check out svbony SV227 narrowband options filter. This filter includes three ultra-narrow wavelength bandpasses: Hydrogen alpha , Sulfur II, and Oxygen III. Giving you new visibility into emission nebulae, supernova remnants, and planetary nebulae. 
The folters are used for deep sky photographic and all are NOT for use on the Sun
90% transmission of the filters can block the light pollution of the city
Filter threads directly into the 2 inch barrel of your telescope eyepiece
90% transmission means the filter also blocks the light from mercury and sodium vapour lamps
Standard M48x0.75 thread interface
The filter can use with filter drawer and electronic camera
The Narrowband filter is designed for nebula observation
Package Includes:
- SVBNOY 2" 5nm Filter
- PP Material Plastic Box
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