Hi guys, I am new to this and I have been reading about the safety guidance before I hop on it
In this part of the video, styro put glasses in front of the camera
Why are we seeing the red dot? I understand that the red light is filtered out that's why we don't see the whole beam. I mean we should have seen a different color because of the light refracted on the object.
Is it still harmful by looking at the spot like that even with the glasses because now the light is now in a different wave length and it is not filtered out by the glasses?