Do not use the dome for a reflective reading, even though there are some at APUG that believe that is the thing to do. I have thoroughly researched that subject on the internet, at Kodak and at many photographic libraries. There are no articles or books that discuss that method. Period. When I talked to optical engineers, their response is that they would like to know what drugs the people who make such recommendations are on. Again, there is no accepted photographic journals nor any photographic books that discuss such blither. Take the blither of using the dome for reflective reading and flush it down the toilet.