SVBONY SV115 18nm 2"O-III Filter Narrowband Cuts Light Pollution Filter US LOCAL For Sale
This item has been shown 12 times.
SVBONY SV115 18nm 2"O-III Filter Narrowband Cuts Light Pollution Filter US LOCAL:
- TODAY`S SPECIAL OFFER
- RETEVIS TOP SELLING ZONE
- 15%~80%off Zone
- US Warehouse
- AU Warehouse
- Radio Communication
- Walkie Talkie ACC
- Cameras & Photos
- Consumer Electronics
- Computers/Tablets & NetworkS
- CA Warehouse
- DE Warehouse
- UK&ES&FR&IT site
- Black Friday Flash Deals
- US STOCK-Motors Parts&Acc
Sign Up Now !
You may also like
SVBONY SV115 18nm 2" O-III Filter Narrowband Cuts Light Pollution Filter for Astronomy Telescope
SVBONY SV115 18nm 2" O-III Filter Narrowband Cuts Light Pollution Filter for Astronomy Telescope Description Narrowband OIII filter is designed for nebula observation allowing 18nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. substrate is fine-optically polished to 1/4 wave and <30 parallelism over both surfaces.Suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants.Suitable for viewing on bright nebulae like M42 Orion Nebula in heavy light pollution.Use with a large aperture telescope under clear and dark viewing conditions with good seeing.Narrowband filter do not eliminate the effects of light pollution or increase the object's brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.Thin metal cells have a clear aperture of 45mm for 2" filtersEach filter comes with a plastic case with high pressure EVA case area: 400-700nmTransmittance: 90% at 495.9nm and 500.7nmFWHM: 18±2nmThickness: 1.85mmSurface quality: 60/40 (Refer to MIL-O-13830)Diameter: 2 inchWeight: 31g
WARNING: The filters are not designed for sun observation. DO NOT LOOK AT THE SUN WITH this FILTER. You would be BLIND if you fail to observe the warning. Package Includes
Svbony focus on telescope and optical accessories. Aim to supply the high quality products and best service to customers. Main items are including Telescope, Monocular, Binocular, Spotting scope, filter, eyepiece and other accessories. We hope that you could enjoy a much more clorful life by using our products.
Svbony has set up US/AU/UK/ES/DE/IT/FR oversea warehouses, trying to offer customers speedy best local service. We are a passionate and extraodinary team, committed to offering good products and keeping customers satisfied with their purchase.
Our goal is to make sure you are a happy customer and pleasant shopping with us.
If you are satisfied with the purchase and our total service, your comment is very important in our business success. Please take a minute to leave us a positive response with an overall Detailed Selling Rating (DSR) of 5
If you are not satisfied with your purchase in any way, Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues.
Do not hesitate to
contact us anytime before and after your purchase through the clicking
"Contact seller' and we are committed to your 100% customer satisfaction
or you can contact us
Our working time: 8:00am-18:00pm (Beijing Time). Because of
time-difference, we cannot give you a quick reply sometimes. Please wait
for some more time.
On Sep-10-19 at 23:51:30 PDT, seller added the following information: