The new generation of welder is learning with the auto hoods, where as 15 years ago they were around but not very good and very expensive.
I find it funny that most welders don't know the "speed of light" being that it is the thing that causes the most damage. That guy who welds beer cans with goggles is probably fine oxy/acc weld, you cant tig a beer can, or aluminum mig for that matter....... so what ever. We were talking about the light the other day I think tig aluminum is UV B, someone may want to confirm that.
I tack without a hood because, i take my hood off all the time, i don't like the flip mech on the new miller auto's. but I have also been doing it for a long time like that so....the damage is done, but, but, if i am really going at it I do use some serious spf sunscreen to reduce the effects.