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Chroma 1.25" Mounted 5nm SII


Price: $460.00


  • Manufacturer: Chroma
  • MPN: SII5_125R
  • SKU: CH_SII5_125R
  • Availability: In-Stock - Available at warehouse ships in 1-2 weeks

If you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next filter to consider adding to your collection after H-a and OIII is the SII (es-two) or sulfur filter. The SII filter, like H-a, is a deep red filter near 672 nm. H-a, OIII and SII filters provide that Hubble look for many emission nebula. Again, tri-color narrowband imaging with these three filters can be done with the moon up, so your equipment is not sitting dormant for several weeks.






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