Jump to content

Canada's top-tier Telescopes & Accessories
Click or hover over image to zoom in
Product may not be exactly as shown

Optolong H-Alpha 7nm (Round 31nm without housing) CCD Filter [OPTO-HA7-31]

OPTO-HA7-31
$190.00 USD
Availability: usually ships within 10-14 days
Optolong: H-Alpha 7nm filter is the most popular narrow band filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, 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. skyglow). Best choice of narrow band H-alpha astrophotography filter for highest contrast and revealing subtle nebula details.

About Optolong H-Alpha 7nm (Round 31nm without housing) CCD Filter [OPTO-HA7-31]

Optolong: H-Alpha 7nm filter is the most popular narrow band filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, 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. skyglow). Best choice of narrow band H-alpha astrophotography filter for highest contrast and revealing subtle nebula details.

  • Glass quality Schott glass
  • Thickness 2mm
  • Surface quality 60/40 standard MIL-O-13830
  • Transmission 80% on H-alpha 686nm
     


Shipping Size

  • Size
    0 in × 0 in × 0 in
  • Weight
    0 lb

Shipping Size

  • Size
    0 in × 0 in × 0 in
  • Weight
    0 lb
×
×
  • Create New...

Important Information

This site uses cookies to offer your a better browsing experience. You can adjust your cookie settings. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to the use of cookies, our Privacy Policy, and our Terms of Use