Originally Posted by radkins
This is very true. I am a Physics teacher not a welder so I am not the greatest welder, but I know that the properties of the glass are what will protect your eyes from harmful radiation not the auto-darkening feature.
Think of it like this, It has been proven, over and over again, that there is nothing in the universe that can travel at the speed of light....NOTHING (as long as it begins life at less than the speed of light). So how could any helmet react fast enough to stop all the harmful rays at start up?
The answer is simple...they would not be able to... and that is an indisputable fact. That means that anyone using an Auto helmet is getting flashed every time they use it(at least a little), if the myth was true.
I have a Speedglass, but only because it was a gift. I like it, but even so, I have been flashed a few times.
This would make a great Mythbusters topic.
Get the HF one if that's what your budget allows and have fun.
\"I see\" said the blind man, as he picked up his hammer and saw.