and when welding thin sheetmetal, especially with a mig welder (wire feed) use multiple tack welds versus a continous bead, much easier if your just learning, the only real good way to weld thin sheetmetal is with a tig welder, and as rooster says, a lighter lens, and a clean one at that will help, lots of guys like a shade 10 for mig welding, easy to see and safe on lighter duty welding, start cranking up the welder and use a shade 11 or even 12, welder burning your eyes is something i don't wish upon nobody, been there and done that, and it really hurts!!