When field welding, arc welding with one hand, it is easy to check the position of the arc start, it is easy because there is no mistake of arc striking the base material. The number of useless back steps has also decreased, and the results of X-ray inspection are also excellent. If you want a greed, you should strengthen a little more. Because it is surprisingly close to the position of the weld line and face as it is on site welding.
This is the second purchase. It's not bad because it's a reasonable amount. There seems to be no such thing as light blurring. However, it seems to be weak against heat. The liquid was darkened by heat when I took the face too close by the glass shielded lens, but it got relieved after returning to the original after a while when it cold. I would like to have a product that is resistant to heat if possible.
Since it is installed on the sunglasses to secure visibility, light rays from the side enters and eyes hurt with ultraviolet rays. I think that it is easy to use if it becomes possible to block the ray from the side.
I used the light shielding filter of "Osaka soul" before, but I do not have it. I was replacing every year. I bought the one of "Yamamoto Engineering" for the first time so I do not yet understand the good or bad. I think that reaction to welding light is fast. I will purchase this if I have good in the future.