03:3703:37, 10 September 2022diffhist−225
Didymium
Didymium does not filter any significant amount of IR. This is a misconception that has caused serious eye damage to many people.
03:3703:37, 10 September 2022diffhist−225
Didymium
Didymium does not filter any significant amount of IR. This is a misconception that has caused serious eye damage to many people.