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Svbony SV227 Telescope Filter 2', H-Alpha 5nm Narrow-Band CCD Filter, Reduce Light Pollution and Sky Glow, Improve Contrast and Detail for Deep Sky Astrophotography

4.3 (2) Write Review
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$99.99

$ 45 .99 $45.99

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About this item

  • SV227 2" Narrow-Band Filter is specifically designed for use with monochrome cameras in astrophotography; it effectively isolates the emission lines of certain celestial objects; enhancing image detail and contrast to make features more pronounced
  • SVBNOY H-Alpha 5nm 2" Filter blocks the transmission of contrast-killing light pollution wavelengths; improve contrast and detail
  • Allowing 5nm bandwidth of light centered on a wavelength of 656.3nm to pass through; 90% transmission
  • Astrophotography under a light-polluted night sky can be difficult; the solution is an H-alpha filter; the H-alpha cut-off filter works to filter out a large part of this light pollution
  • 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece
  • This H-Alpha filter also blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter


Product Description

Product Description

telescope filter

The SVBONY H-alpha filter works to filter out a large part of this light pollution.

telescope filter

The clear focus range becomes wider when the optical density becomes larger.

Astrophotography

The SV227 filter is compatible with telescopes for astronomical photography

telescope filter
telescope filter

The transmittance of the filter is up to 90%.

Telescope Filter

Allowing 5nm bandwidth of light centered on a wavelength of 656.3nm to pass through.

telescope filter

This H-Alpha filter also blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter.

telescope filter

After using this filter, you can take good quality images even under urban skies.

telescope filter

Standard M48x0.75 thread interface adapts to most devices

Specifications

Brand SVBONY
Model SV227
Size 3.2-Inch
Substrate Thickness 1.80mm
Clear Aperture 44mm
Wavelength Range 300-1000nm
CWL 656.3nm
FWHM 7nm
Blocking ≥OD5
Peak transmittance ≥90%
Surface Quality 60/40
Surface parallelism 1/4λ
Thread M48x0.75
Net Weight 15.12.5g / 0.44oz /0.027lb

Quentin L
Reviewed in the United States on January 27, 2025
I’m giving this a one because was never able to use it because there is no information in description that states that this filter is for mono cameras it cannot be used with a color camera. It would be nice to actually have that information that way I don’t waste time indoor money
Xavier
Reviewed in the United States on July 12, 2024
I will show you some samples later on but for now this is the best purchase for my hobby. It is just the right 5nm. While others sell their 7nm for the same price SvBony always has something better. Thank you once again