Haydon wrote:
I personally wouldn't go that route. Because of the poor optical qualities of welders glass, it's very common to get double imaging in your pictures.
I tried this on a partial solar eclipse several years ago using #13 or #14 welders glass. You need to keep the camera aimed at the sun and the welders glass perpendicular to the line of sight or you will get refractions and double images.
The attached file is a montage of the better shots.