Description: The SVBONY City Light Suppression broadband filter is designed to improve the visibility of various Deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area. Features:Multi-layers anti-reflection coatingNon-cementing optical substrate coatingElectron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band.Ultra-thin filter cell minimize vignetting by maximize possibleAerometal Material Precise CNC Machining Sand BlastingProcess Black Anodized Finish Extinction Treatment toPrevent Reflection Laser Engraving No Fading90% transmission of main nebula emission lines (i.e. Ha 656nm, OIII 496nm&500nm, SII672nm and H-beta 486nm).0.1% transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nmand 578nm).Suitable for color CCD cameras and unmodified DSLRsCLS with wider pass-band than UHC and hence is more favored when observing under mild to moderate light pollution.Light pollution 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.WARNING: The filters of SVBONY are not designed for sun observation. DO NOT LOOK AT THE SUN WITH SVBONY FILTER. You would be BLIND if you fail to observe the warning. Specifications:Brand: SVBONYType: City Light Suppression Filter (CLS Filter)Material: Optical glass lens, Aluminum FrameShape: RoundBarrel diameter: 1.25''Thread: Standard M28.5*0.6mmNet Weight: 5.2g / 0.18oz Package IncludesSVBONY 1.25 inch CLS FilterSturdy Plastic Case ShippingWe offer FREE shipping on all orders!We ship within Three business days of payment, usually sooner.We use a selection of shipping services such as UPS, FedEx, USPS etc.We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed.Local pickups and combined shipping options are not provided at this time.ReturnYou can return a product for up to 30 days from the date you purchased it.Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.PaymentWe accept payment by any of the following methods:PayPalPlease pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner!FeedbackCustomer satisfaction is very important to us.If you have any problem with your order, please contact us and we will do our best to make you satisfied.Contact UsIf you have any queries, please contact us via ebay. We usually respond within 24 hours on weekdays. Please visit our eBay store to check out other items for sale!Thank you for shopping at our store.
Price: 45.89 CAD
Location: shenzhen, null
End Time: 2024-11-04T06:53:14.000Z
Shipping Cost: 0 CAD
Product Images
Item Specifics
Returns Accepted: ReturnsNotAccepted
Size: 1.25 in
Compatible Brand: Universal
Type: Filter Kit
Compatible Model: Universal
Features: Padded
Compatible Series: Universal
MPN: Does not apply
Brand: SVBONY
Unit Type: Unit
Unit Quantity: 0.3
Country/Region of Manufacture: China
