Light weight, auto-darkening works perfectly. I've used it on a stick, flash and even a 20 amp wig with no problems. I compared this lens hood to the optrel crystal 2.0 and although it was better in some aspects, for the price of this lens hood it's just amazing value. The resolution was just as sharp and clear as long as you hold a clean lens. Never had problems with flickering. I had two problems; The top part of the headgear comes off easily, I fixed this by taping over it (as you don't need to adjust this often). The second issue is adjusting the headband diameter, maybe it's just my head size, but there's no happy place, either too loose or too tight. I highly recommend purchasing multiple sets of spare lenses if you weld frequently. , wiping the lens with even the softest microfiber cloth will leave scratches.
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