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SVBONY SV227 SHO 5nm Narrowband 1.25" Filters

SVBONY SV227 SHO 5nm Narrowband 1.25" Filters

Regular price R$ 114,99 BRL
Regular price R$ 169,10 BRL Sale price R$ 114,99 BRL
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SVBONY SHO 5nm Narrowband 1.25" Filters

The SHO filter 5nm 1.25 inch is highly transparent, allowing the emission spectrum of the nebula to collect as much energy as possible by accumulating exposure. There is higher contrast and the level of the nebula is richer and more delicate. (Please note: This filter set is not suitable for telescopes with a focal ratio below F/5.)

  • The H-Alpha 5nm is an extremely narrow emission-line filter that works by allowing a 5nm bandwidth of light, centered on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths. Wavelengths that are responsible for natural light pollution, or skyglow, are drastically reduced, as is artificial light pollution caused by high and low pressure sodium vapor and mercury vapor lights. The result is a high contrast image that reveals the H-alpha line in all its glory
  • The Sulfur II 5nm Extra Narrowband Filter transmits a 5nm bandwidth of light that is centered at 672nm and drastically reduces other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural). Like all SVBONY filters that are designated as “CCD”, this SII filter also blocks infrared wavelengths from 700nm to 1100nm so you don't need a separate IR-Cut filter
  • The Oxygen III 5nm Extra Narrowband Filter transmits a 5nm bandwidth of light that is centered at 500nm and drastically reduces other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural). Like all SVBONY filters that are designated as “CCD”, this OIII also blocks infrared wavelengths from 700nm to 1100nm so you don't need a separate IR-Cut filter




Technical Specifications 

Brand SVBONY
Product Name SII & OIII & H-Alpha Filter
Model SV227
SKU W9187A
Spec 5nm 
Size 1.25-Inch
Transmission Line Wavelength 500.7nm & 656.3nm & 671.6nm
Peak Transmission Rate T ≥90%
Wavelength Range 300-1000nm
Blocking OD5 @300-1000nm
Clear Aperture 26mm
Surface Quality 60/40
Surface Parallelism 1/4λ
Cut-off Depth Average ≥ OD5
Parallelism 30"
Thread Size M28.5x0.6 
Thread Type Single thread / Male thread
Net Weight 140g 
Substrate Thickness 1.85mm
Surface Treatment CNC / Black Anodized
Material 6061T Aluminum Alloy
Net Weight per Piece 15g
Filter Diameter Φ31.75x7mm

 

In the Box

  • SHO 5nm Narrowband Filter Set

 

Manuals & Warranty

Svbony 1-Year Warranty 

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