An ESAB auto welding helmet. Not cheap, but incredible optics and very clear window when it shifts to "off". It is a bit strange looking as it has a "bubble" in the nose and mouth area that allows the welder to wear a respirator while the helmet is down. It is also very light weight, improving the comfort of using it for many hours. It is quantum leaps ahead of the quality Jackson auto helmet I bought about 20 years ago. Wife insists that I can't use it till Christmas Day.
May you all have a good Christmas!
Paul in MN