I made the first mistake of buying one of those chinese auto-darkening helmets on eBay. I couldn't see a thing, so after trying (briefly) someone's Miller, I bought a Millet XLi helmet ($175). I'm still having a hard time seeing the work - it adjusts from 9 to 13 and no setting lets me see well enough to stay where I need to be. I'm trying to weld a corner, which I guess is tougher to see than a lot of joints.
I've tried keeping the arc behind the nozzle, etc. but I just get a green bright spot with little surrounding detail.
Is the Miler XLi another inferior unit, or am I blind? I'm going to go find an old used fixed helmet today and see if it's me or them.
I thought it might be my polycarbonate eyeglasses, but it doesn't appear to get better with an old glass pair or none (of course, after groping around just to find the torch!).