Spec. Reflec. is a function of the surface that light impinges upon (and it's shape, of course). In this case, reasonably polished, e.g. not rough, metallic surface that is curved. No real mystery at all. <div class="Discussion_UserSignature"> <p><em>Differential Diagnosis: </em>"<strong><em>I am both amused and annoyed that you think I should be less stubborn than you are</em></strong>."<br /> </p> </div>