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

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

Completely blocks IR radiation up to 5000 nm

Good complement to neutral density filters without blocking UV and IR

Optolong 1.25" IR/UV Blocking Filter on KG3 Glass

The Optolong KG3 filter completely blocks IR radiation up to 5000 nm! This provides the best possible protection from the sun's heat radiation (unless you use a cover on the telescope) if you are unsure about the quality of your solar filter.

DANGER! This filter is only intended as a complement to a lens solar filter or a Herschel prism; it is NOT a replacement for a solar filter!

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

Optolong KG3 UV/IR Blocking Filter