Free Shipping On All Orders Over £250 | Call us today on 020 8064 2095

0

Your Cart is Empty

Telescopes
  • TELESCOPES

  • ACCESSORIES

  • FEATURED

  • Binoculars
  • BINOCULARS

  • FEATURED

  • Sporting Optics
  • SPORTING OPTICS

  • FEATURED

  • Brands
  • Shop by price
  • Optolong HSO 7nm Narrow Band Deep Sky Imaging Filter SET 2" for CCD/CMOS Astro Photography

    .

    Optolong HSO 7nm Narrow Band Deep Sky Imaging Filter SET 2" for CCD/CMOS Astro Photography (7nm H-alpha + 6.5nm SII + 6.5nm OIII)

    Please note, although these filters are also available individually, if you buy this full HSO bundle you will save some money in comparison to the price of the individual items.

    Please see the separate product descriptions for each individual filter.

      WARNING:

      Optolong filters are not designed for solar observation. DO NOT LOOK AT THE SUN WITH ANY OPTOLONG FILTER as permanent eye damage will be the result.

      Filter Cell (only for filters in a cell)

      • Ultra-thin filter cell minimise vignetting by maximising possible clear aperture (clear aperture is 26mm for 1.25” size and 45mm for 2” size)
      • Aerometal Material
      • Precise CNC Machining
      • Sand Blasting Process
      • Black Anodized Finish
      • Extinction Treatment to Prevent Reflection
      • Laser Engraving No Fading

      Available Sizes

      • Standard 1.25" and 2”
      • Round 36mm Unmounted

      Packaging

      • Plastic PP Case
      • Imported High Pressure EVA Case Lining
      • Silver Cardboard Box
      • High Density Sponge Carton Lining

      The Major Emission Lines of Nebulae: H-α 656.3nm, H-β486.1nm, OIII 495.9nm, OIII 500.7nm 
      The Major Emission Lines of Artificial Light Pollution: Hg 435.8nm, 546.1nm, 577nm, 578.1nm, Na 598nm, 589.6nm, 615.4nm, 616.1nm

      As authorised dealers for all our products they come with a full manufacturers warranty along with our satisfaction guaranteed, no-questions-asked full refund policy for a full 30 days.

      Please see our returns policy for full details.

      We ship direct from UK warehouses and provide free shipping on all purchases within England, Scotland and Wales (Excluding highlands and Islands)

      We use UPS, DHL, DHL Express, Parcelforce or Royal Mail for all orders.

      Estimated delivery time is displayed at checkout.

      See our shipping policy for more details.

      Should you be outside the free shipping area then please contact us to discuss shipping options as prices vary depending on products and delivery location.

      Got questions? Read through our FAQ list to see if it's answered there! If not, please contact us via this form.

      Customer Reviews

      Be the first to write a review
      0%
      (0)
      0%
      (0)
      0%
      (0)
      0%
      (0)
      0%
      (0)