Comments about Sigma Sigma AC Adapter SAC-3 for the DP-1 Digital Point & Shoot Camera:
The AC adaptor has essentially two uses. One is for tethered use of the camera and the other is for downloading files from the camera. One thing for sure is that anyone who owns a Sigma DP camera must have either this AC adaptor or a high quality card reader. Downloading and reviewing files from the camera using the battery is a risky business, since the camera can simply shutdown during the process causing great inconvenience and possible loss of data.