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Item #OLNG-NIKD5-UHC

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  • $115.00
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  • Optolong's UHC filter is great for observing in areas with light pollution
  • Easily attaches to Nikon D5100 Cameras
  • Designed from Schott glass that has been multi-coated with ion-assisted deposition technology
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  • Description

    Optolong UHC Broadband Clip Filter for Nikon D5100 Cameras

    Optolong's UHC, or Ultra High Contrast, filter gives a bit more contrast than the CLS filter but works much similar. By minimizing the effects of artificial and natural light pollution, the background sky appears darker, increasing the visibility of your favorite celestial objects. Skyglow is typically caused by neutral oxygen in the atmosphere, light from high and low-pressure sodium vapor lights, or mercury vapor lamps. By suppressing skyglow at its sources, you can now view or image from areas of heavy light pollution.

    Optolong’s UHC filter lets desirable wavelengths pass at a peak transmission of 95%, including emission lines at OIII, H-Beta, NII, H-Alpha, and SII. This filter also has a substantial red passband, so objects like the Orion Nebula look awesome!

    The Optolong UHC Nikon D5100 Clip Filter is made with Schott glass that has been multi-coated with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength, or CWL. Each filter cell is made of lightweight, strong metal and is CNC machined, sand-blasted, black anodized, and then laser engraved.

     

    Using a Clip Filter on your Nikon D5100 Camera

    • The Optolong Nikon Clip filter can be inserted without tools; just use your fingers to insert or remove the filter. Once inserted correctly, it cannot unintentionally fall out.
    • No changes to the housing of Nikon DSLR are required. All lens functions will work with the Clip installed, including focus, screen, and image stabilization,
    • The Optolong clip filter prevents dust from settling on the sensor during long exposures.
    • Nikon D5 clip filters are compatible with Nikon D5100 cameras. If you have a Nikon D7000 or D7100 camera, Optolong offers clip filters for these cameras as well.
    • To use adapters to attach your camera to a telescope you’ll need to insert the Clip-Filter first and then install the desired lens adapters.

     

    Quality Filter Materials:

    • Schott B260 substrate material from Germany, 1.0mm thick
    • CNC machined and black anodized aero-metal filter cell that is ultra-thin to provide largest clear aperture; Laser-engraved to prevent fading
    • Multiple layers of anti-reflection non-cementing coatings applied via electron-beam gun evaporation with Ion-assisted deposition

     

    Optolong Filter Manufacturing Processes and Parameters

    • Filter substrate is fine-optically polished to 1/4 wave and <30 parallelism over both surfaces
    • Surface quality, according to MIL-O-13830, is 60/40
    • 95% transmission of main nebula emission lines (i.e. H-alpha 656nm, OIII 496nm and 500nm, SII 672nm and H-beta 486nm
    • 0.1% transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nm and 578nm)
    • Optolong’s planetary rotation system is a homogenous and precise coating procedure that ensures both high transmission of pass-band and optical density of off-band
    • Each filter comes with a plastic case with high-pressure EVA case lining

       

      About Optolong

      Optolong is the Astronomy Filters division of Yulong Optics, an optical filter design, and processing company out of Kunming, China that has provided filters for over 700 optical companies since 1999. All Optolong filters pass European Union RoHS requirements and have been certified by TUV Rheinland and Bureau Veritas.

       

      Supplier SKU

      NIKD5-UHC

      What's Included

      • Optolong UHC Filter in Nikon D5100 Clip Format

      • Filter Case

    • Dimensions & Specifications

      • Filter Size: Nikon D5100 Clip

      • Filter Type: Broadband Deep-Sky
      • Filter Shape: Nikon Clip
      • Mounted or Unmounted: Mounted


    • Product Guarantee

      We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

      Manufacturer Warranty

      Two Years

      Return & Exchange Policy

      At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

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