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SVBONY SV220 Telescope Filter, H-Alpha & OIII, 7nm Dual-Band 2" Nebula Filter for Astrophotography

Telescope Wolves

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Price: $121.99 USD
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Availability: Pre-order

Estimated Arrival: Between Dec 05 and Dec 19. United States

Ships within 4-7 days

  • Description
  • Shipping & Returns
  • Price Match
  • Warranty
  • Reviews
  • Product Q&A
  • Manuals

Description

                                      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

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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

Features

  • Reduce Light Pollution: It can greatly reduce the interference from natural light sources such as moonlight or artificial light pollution such as street lighting;
  • Improving Contrast: The filter enhances contrast during visual observation of gaseous and planetary nebulae, even under light-polluted skies. By improving contrast, it makes the nebula stand out more clearly against the sky background, but does not increase the nebula's brightness;
  • Strong Applicability: The filter applicable to SVBONY's electronic cameras and astronomical cameras;
  • Scope of Application: Useful for imaging emission nebulae, planetary nebulae and supernova remnants.

Note: This filter set is not suitable for telescopes with a focal ratio below f/4

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Specifications

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


Shipping & Returns

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at shipping@telescopewolves.com.

Cancellations & Refunds:

All orders canceled after 48 hours are subject to a $20 administration fee, whether or not your order has shipped. If your order has shipped, you (the buyer) will also be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order.

Damages:

Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrive damaged, please send photos to shipping@telescopewolves.com and we will process an insurance claim on your behalf.

Price Match

We want you to spend your time focusing on the stars, not on the price.

If you find another online store that offers a lower price than us within six months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date, we will refund the difference as well.

To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitors website
  • The competitor must be an online store, they may not have a retail location
  • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

Not convinced yet? Check out all our amazing products here!

Warranty

Our Promise

We know you'll like the products we offer as much as we do- that's a Telescope Wolves Guarantee. In fact, if for any reason there is an issue with your products, please contact us upon receipt of your order with your order number and concern, and a member of our team will be happy to assist you from there.

Telescope Wolves will be happy to refund you the difference in price:
  • if you find another online store that offers a lower price than us within six months of your purchase date, OR
  • if you find that our own website has a lower price for the same item you have ordered within six months of your purchase date

Please consult our Price Match Guarantee for further details. 

Product Warranty Policies

We also offer warranties from each of our partners (to ensure that you enjoy the products as much as we do).

Vixen's Warranty :

Vixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:

  • Vixen Electronic Parts: Limited One Year Warranty
  • Vixen Mechanical Parts: Limited Two Year Warranty

Interested? Shop for all of Vixen's products here

Bresser's Warranty :

Bresser offers a limited USA one year warranty when product is registered within 60 days of purchase. Interested? Shop for all of Bresser's products here.

Explore Scientific's Warranty :

Explore Scientific offers a limited USA one year Warranty, which also converts to the Explore STAR Transferable Extended Life of the Product Warranty. Product must be registered within 60 days of purchase for this warranty to apply.

Interested? Shop for all of Explore Scientific's products here.

Daystar Filters's Warranty:

If used as directed, your DayStar filter is guaranteed for ten years. Should the filter become inoperative due to optical or mechanical failure, Daystar will repair the filter or replace it with an equivalent filter at no repair cost to the customer.

Under no circumstances shall a refund be issued:

  • due to application issues or the buyer's lack of skills in application of the product
    • Application of the DayStar product requires a degree of technical expertise specific to the exact product line, which is not common to other optical applications
  • if the product’s technical application procedures are NOT followed properly and poor results are yielded
    • Application procedures are posted on Daystar’s website and are stated in further detail in the client's operation manual
  • due to buyer’s remorse

Goods are warranted to be in operative, working condition as stated in specifications of product at the time of delivery. Should the goods not meet these specifications, Telescope Wolves will put a request in on your behalf to repair or replace the goods with items which meet stated specifications of product.

  • Goods shipped shall meet specifications stated by means of optical laboratory testing using independently verified spectrometer testing methods, visual inspection, and visual qualification of performance.

Interested? Shop for all of Daystar Filters's products here.

Hutech's Warranty:

Hutech offers a one year warranty on all its products.

Interested? Shop for all of Hutech's products here.

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QUESTIONS & ANSWERS

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Manuals

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