- Express delivery within the EU
The Explore Scientific SII filter is specifically designed for emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - and in this case its ionized sulfur.
The Explore Scientific SII nebula filter blocks all other colors (and therefore almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through. The result is simply amazing as suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies, many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and astrophotographer.
All Explore Scientific nebula filters come with an individual test report - so you can be sure to get high quality filters.
Features:
- Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants
- Blocks almost all artificial light
- Only lets the emission lines of ionized sulfur at a 672nm pass
- 1.25" Filter Thread
- Transmission bandwidth: 6.5nm
- Allows for more contrast in faint deep sky objects
- Ideal for use in cities or heavily brightened skies
- Individual test certificate included to guarantee you receive a premium filter
- A 1.25" S-II nebula filter
REPUBLIC OF IRELAND
Est. Delivery Time:
5 - 7 Working days after dispatch
Standard Tracked Delivery:
Republic of Ireland Nationwide: from €8.95 upwards
Note: The exact shipping charge will depend on the size of your order and will be calculated at the checkout. Some large and bulky Telescopes may also be shipped to you directly from our Manufacturer. This is a special agreement we have with our suppliers to ensure our customers enjoy the cheapest possible shipping rates for large bulky Telescopes.
For some very large Telescopes over 45kg, it may require special handling instructions and you will be asked at the checkout to contact us for a special delivery quotation.
Mainland EUROPE (EU)
Est. Delivery Time:
3 - 5 Working days after dispatch
Standard Tracked Delivery:
Mainland Europe: from €4.95 upwards
Note: The exact shipping charge will depend on the size of your order and will be calculated at the checkout. Some large and bulky Telescopes may also be shipped to you directly from our Manufacturer. This is a special agreement we have with our suppliers to ensure our customers enjoy the cheapest possible shipping rates for large bulky Telescopes.
For some very large Telescopes over 45kg, it may require special handling instructions and you will be asked at the checkout to contact us for a special delivery quotation.
EU Additional Info:
If your country is not listed below please contact us for a specialised quote.
Standard EU Delivery Regions:
Germany, France, Belgium, Poland, Luxembourg, Netherlands, Denmark, Portugal, Spain, Austria, Italy, Poland, Croatia, Malta, Greece, Monaco.
IMPORTANT: It is essential when placing an order, that you include a valid 'Contact Telephone Number' for the delivery address or for the person receiving the item. This is necessary to avoid potential delays, return delivery costs or problems with your delivery.
Shipping Disclaimer: All of our parcels are sent via a 3rd party registered courier service to ensure safe and prompt delivery. While we endeavor to ensure that all parcels are delivered within the specified time frame, 'Horizon Astronomy' can not be held responsible for delays due to adverse weather conditions or other courier/technical related issues outside of our control.