I was curious how well a welding helmet would work as a solar filter. It turned out to cause weird reflections and made the sun appear to be full even when it was 80% covered.
This last picture is the only one that showed how much the sun was actually covered, I think light was getting in between the camera lens and the helmet making the reflections.The spots on the pictures are most likely welding splatter as my welding helmet has seen better days.