Is there a way to manipulate depth of field other than through aperture? With filters or something? This is actually something I want to do with my video camera, but I figure you photography people would be more in touch with lens filters and techniques. I have a rather nice Sony HDV camera (HVR-Z1U). Even at f/1.8 at a longer focal length, the amount that's in focus is way too much for my liking. (This is, I believe, because the censors on the video camera are much smaller than those found on SLRs). So I want more of a photographic look. I want razor thin focus. But I don't want to spend a million dollars on a 35mm lens adapter (I'd like to, but don't have the money). Can I buy filters or anything? I was thinking about maybe a macro filter, would that work?