I'm using an Canon HV20 with a homemade 35 mm adapter, and when ever i am filming near a bright light source, i get strange lens artifacts. It is NOT lens flare. These artifacts are exact reflections of the light source that appear opposite of the light source itself in the film, whereas lens flare is images of the lens elements. I do not get this unless i am using the 35mm adapter, so something in there is causing the problem. Is this just something that you deal with when using a 50mm lens, or did i do something wrong?