Patent ID: 7532815

Claim:
A digital camera constituted of a lens unit having a taking lens and an imaging device incorporated therein, and a camera body to which said lens unit is removably attached, said digital camera comprising: electrical connectors for electrically connecting said lens unit and said camera body when said lens unit is attached to said camera body; a nonvolatile memory provided in said lens unit, for previously storing characteristics information related to characteristics of said lens unit; an attachment detector provided in said camera body, for detecting that said lens unit is attached to said camera body; a controller provided in said camera body, for transferring said characteristics information from said nonvolatile memory through said electrical connectors into said camera body when said attachment detector detects that said lens unit is attached to said camera body; a signal processor provided in said camera body, for processing said characteristics information; and a display provided in said camera body, for displaying an information image based on said characteristics information that is processed in said signal processor, wherein said characteristics information is resolving power chart information, said resolving power chart representing image resolving power.