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EXPLORE SCIENTIFIC 1.25" H-Alpha Nebula Filter 7nm

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The EXPLORE SCIENTIFIC H-Alpha filter allows photography of red glowing emission nebulae; narrow band version with 7 nm to increase contrast even in difficult urban conditions.

  • High-quality EXPLORE SCIENTIFIC H-Alpha filter
  • Only lets the emission lines of hydrogen pass
  • Absorbs all other emission lines and almost all artificial light
  • Ideal for use near the city, with heavy lightened skies
  • Band pass width: 7 nm
  • Better contrast and more details achievable for urban astrophotographers
  • Blocks almost all light from mercury and sodium vapor lamps
  • Many of the red glowing emission nebulae are only visible in full expansion on photos taken with these filters
  • In spite of the existing light pollution amazingly good image results are possible
  • Individual test certificate included to guarantee you receive a premium filter
Delivery period: 7-10 working days.

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Product number: 0310145
EAN: 4007922072753
Shipping Weight: 0.26 kg

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