Hi, I'm a wedding/Bar Mitzvah photographer who recently purchased a hmc40 so I can also also offer video to my clients. I'm shooting in mostly low light situations and I'm set at 24p 1/24 720ph. Manual white balance, anti shake. Imported into imovie. So far, I'm quite unsatisfied with the results that look very grainy. Especially black. Am I missing something? Are my settings correct? Please help.