Optolong 1.25" IF/IR/UV blocking filter on KG3 glass - OP-KG3-1

OptolongSKU: OP-KG3-1

Sale price$122 CAD
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The Optolong 1.25" IF/IR/UV Blocking Filter on KG3 Glass provides superior protection by completely blocking IR radiation up to 5000 nm. This makes it an excellent complement to neutral filters that do not block UV and IR radiation.

Key Features:

  • Complete IR Blocking: Blocks IR radiation entirely up to 5000 nm, offering the best possible protection against heat radiation from the sun.
  • Enhanced Safety: Ideal for use with lens solar filters or Herschel prisms to ensure the highest safety standards for solar observation. Note: This filter is NOT a substitute for a primary solar filter.
  • Quality Construction: Made with KG3 glass for durability and reliability.

Important Notice: This filter should only be used as a supplementary protection in conjunction with a proper lens solar filter or Herschel prism. It is NOT a standalone solution for solar observation and must not be used without adequate primary solar protection.

Elevate your observational safety and enhance your viewing experience with the Optolong 1.25" IF/IR/UV Blocking Filter on KG3 Glass.


Type: Infrared and UV blocking filter (up to 5000 nm)
Coating: Multi-coating
Mount: aluminium mount
Connection: 1.25" filter thread

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