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
This Product was added to our catalogue on 29/12/2025.