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1.25" Filter H-Beta 25nm Astronomy Telescope Enhance Contrast of Nebulae for Visual Observation

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Product details

Management number 221804588 Release Date 2026/05/03 List Price US$86.01 Model Number 221804588
Category
  • Multi-layers anti-reflection coating
  • Non-cementing optical substrate coating
  • Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching,as well as stability on CWL(central wavelength)no deviation affected by temperature change
  • Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band

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