I think photographing bright shiny red glazes are probably right up there as being one of the hardest things to photograph. I have tried everything from matting spray to using gobos... and nothing ever completely cuts the glare. My frustration right now is that the backdrop paper I am using (even though it is obviously grey) reflects just enough light back into the sides of the bowls as to create washed out side-glare. Ugh! I want sharp crisp outlines! Today's goal is to try to figure out a way to keep that light from bouncing back up around the bowl.