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Quick Details

  • Place of Origin: Yunnan, China (Mainland)
  • Brand Name: OPTOLONG
  • Model Number: CLS-CCD
  • Size: 1.25'' ,2" or custom
  • Material: B270,BK7,JGS
  • Use: Astronomy photography filter
  • Transmittance: > 95% of the common
  • Manufacture: Double sided polishing
  • Special: Laser Inscription LOGO, ultra-thin frame
  • Edge Treatment: Mounted in Black Anodized Aluminum Ring
  • Shipment: Air/Express
  • Min Order: 1 piece
  • RoHS: passed
  • SGS: passed
  • ISO9001: passed
  • OEM/ODM: welcomed

Packaging & Delivery

Packaging Details: +Plastic case material : PP material
+Plastic case lining : imported high pressure white EVA material
+Carton : white cardboard or high density board
+The cartons lined with high density sponge

1.25",2" CLS-CCD Filter(Luminance Filter)OPTOLONG Photographic filters for Urban Sky Photography 

CLS-CCD astronomical filter with an obvious effect on blocking city harmful lights and skyglow lights. it has a high transmittance at the region of OIII(496nm & 500nm), Hβ(486nm), NII(654nm &658nm), Ha(656nm)and SII(672nm). It's blocking area from 300nm to 1100nm wavelength, which is contributed to prevent the interference from low frequency stary light.


OPTOLONG CLS-CCD filter is suitable for astronomy professional color CCD camera, SLR mod and other professional equipment. Our CLS-CCD has good prevention effect on background skylight, and good for the emission nebula, planetary nebula and remnant line spectrum.






Kunming Yulong Optical & Electronics Technology Co., Ltd. is a high technology company, which specialized inoptical filter design and processing. Our products include Astronomical Filter,Bandpass Filters,FluorescenceFilters,Edge filters, Longpass & Shortpass Filters,Beam spliters,Antireflective Coating,Optical Mirrors and so on.


OPTOLONG Established in 1999, and located in Kunming City .We provided nearly 2000 kinds of optical coating filters every year, Business services for more than 700 optical companies all over the world, and established longterm stable cooperative relations with 4 global top 500 enterprises and 2 world famous EMS manufacturers.


We've obtained ISO9001 system certificate since 2005. Our products passed by SGS test and RoHS test OPTOLONG is the first company who earned the Golden Supplier from Alibaba in Yunnan area, and passed certification by TUV Rheinland and Bureau Veritas independent .



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China (Mainland) | Manufacturer, Trading Company
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3 Transactions 400+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $42,000
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