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SV220 Telescope Filter 7nm Dual-Band Nebula 2 inches

SKU: W9172B-
US$ 159.99
  • Reduce light pollution; SV220 Dual Narrow bandwidth H-Alpha/O-III 7nm narrowband filter properly designed for astrophotography both in light polluted environment.It can greatly reduce the interference from natural light sources such as moonlight or artificial light pollution such as street lighting;
  • Astrophotographic;the filter enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; the filter allows high-contrast imaging even in areas with strong light pollution;
  • Improving contrast; an increase in contrast can be perceived as an increase in brightness; the filter makes the contrast of the nebula and sky background increase; not the nebula brighter;
  • Strong applicability; the filter applicable to SVBONY's electronic cameras and astronomical cameras; 
  • Useful for imaging emission nebulae, planetary nebulae and supernova remnants. Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow.

Note: This filter set is not suitable for telescopes with a focal ratio below F/5.

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                                      SVBONY SV220 2 Inches Dual-Band Filter

SVBONY 7nm dual band filter is designed to drastically reduce the effect of light pollution. The 7nm bandwidth means it strongly isolates
the nebulae's emissions into H-Alpha (red) and OIII (green-blue) from anything else. It blocks light pollution, maximizes the signal from 
nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps, high- and low-pressure sodium vapor 
lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere.

SV220 Dual-Band 7nm Nebula Filter

Dual Narrow Bandwidth H-Alpha/O-III 7nm Narrowband Filter Properly Designed For astrophotography of emission nebulae, planetary 
nebulae and supernova remnants. The high transmission and sharp cut-off greatly enhances the contrast of image and brings out the 
most detailed information of those deep-sky objects.  

 

 SV220 Dual-Band 7nm Nebula Filter

The 7nm dual-band filter allows OIII (500.7nm) and H-Alpha (656.3nm) nebula emission lines to be highly transparent, strongly isolates 
the nebulae's emissions into H-Alpha (red) and OIII (green-blue), and drastically reduces the effect of light pollution.

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

You can enjoy the fun of nebula shooting at anytime and anywhere in light pollution city or under a full moon. You don't have to to travel 
through mountains and rivers for your photography, and your traffic fuel and time are also saved.

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

SV220 Dual-Band 7nm Nebula Filter

11 reviews

Write a review

Fantastic Filter

I used this filter under Bortle 5 , and it performs outstanding. I was really surprised about the fantastic color reproduction , the details and the sharpness. If I could give 6 stars, I would

MIni review of sv220 from a beginner

my sv220 seems very nice unlike svbony's website.

Cant imagine better one :)

Only what I was worry about befiore buy was halo of big stars but... THERE IS NO halo at all with Askar 71F, can't imagine better filter for this price at this moment! 10 days shipping to UK.

Positive Disappointment!

Excellent product, I can only recommend it.

Impressive

I would have had this a year in November and the quality of my images and what I was capturing improved 1000% after using the CLS & UHC filters this filter gave me the ability to capture objects I wasn't able to previously and as an experiment I tried it on some galaxies and it performed amazingly the detail I got especially on the Andromeda Galaxy was spectacular

Excellent filter

excellent filter for bortle 8

Don't Hesitate!

I'm really impressed with all the products I've gotten from SVBONY. A lot of the gear in my astronomy setup comes from SVBONY, and I keep buying their stuff because of the great bang for the buck. This filter came in a cool box, housed in clear plastic, and protected with foam. The filter is made of high-quality materials and doesn't feel or look cheap.

New Vistas

First light with the SV220 was the night before the full moon. I imaged the Trifid and Pelican Nebulae, and with PixInsight and Bill Blanshan's NarrowbandNormalization I was able to get an outstanding result on both. My Pelican HOO image is so striking that ZWO chose to feature it in the ASIAir Community App. A Gold Star on the very first try is pretty exciting! The weather refused to cooperate the night of the full moon, but the next night was clear (but windy). My first night's images were very noisy, so I increased the gain on my ASI533MC Pro from 100 to 200 and chose the Cygnus Wall as my target for the night. Once again the result was astonishing, with detail and depth that I've never seen before, ranging from the jet black of the dark nebula LDN 935 to the luminous red clouds of the Wall, with a beautiful teal mist in the expanse between. The SV220 is an outstanding value.

An amazing filter that competes with the best on the market

Simply spectacular. Narrowband astrophotography with the SV220 filter is a real pleasure. The sharpness, contrast and elimination of light pollution make this filter an essential tool in my astrophotography kit. I totally recommend it

sv220 duo band 7nm astrophoto filter

I own this filter and I tested it under a Bortle 5 sky with a full moon and it allowed me to image the M42 nebula perfectly, no halo or stray light from the moon or light pollution from the city. I used a color CCD and the end result was incredible. I will post the photo on the official Facebook page as Leoni Giovanni
Brand​ SVBONY​ SVBONY​
Model​ SV220 SV220
Name​ Duo-Band OSC Filter​ Duo-Band OSC Filter
Size​ 2-Inch​ 1.25-Inch
Substrate Thickness​ 1.80mm​ 1.85mm
Clear Aperture​ 44mm​ 26mm
Wavelength Range​ 300-1100nm​ 300-1100nm
FWHM​ OIII (7nm) & HA (7nm) ​ OIII (7nm) & HA (7nm)
Blocking​ OD5​ >OD5
Peak transmittance​ 500.7nm@T>90%; 656.3nm@T>94%​ 500.7nm@T>90%; 656.3nm@T>94%​
Surface Quality​ 60/40 ​ 60/40
Surface parallelism​ 1/4λ​ 1/4λ
Thread​ M48x0.75​ M28.5*0.6
Single Thread​ Yes​ Yes
Net Weight​ 12.5g / 0.44oz /0.027lb​ 7g

Features


1.Dual Narrow bandwidth H-Alpha/O-III 7nm narrowband filter properly designed for astrophotography both in light polluted
2.Allows for imaging in bright man-made light pollution and moonlit conditions
3.Take color images without needing to combine images with multiple filters
4.Most useful for One-Shot Color cameras
5.Useful for imaging emission nebulae, planetary nebulae and supernova remnants
6.High transmission and sharp cut-off can greatly enhance the contrast and bring out the most detailed information for those deep-sky objects
7.Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow
8.The duo-band narrowband filter is not suitable for visual observation and not designed for imaging or observing the Sun
9.Be aware that the SV220 is not a great fit for fast telescopes, some users reported that the Duo-Band OSC Filter paired with the RASA caused band shift, thus clipping the HA data.

The Reviews by Cuiv 

Unboxing by Felipe Almario

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