Patent ID: 7414231
Filing Date: 2008-08-19
Classification: G02B,G03B,H04N

Abstract:
1. A focus-state detecting device to which a removable lens unit is mounted, comprising: a focus-state detection unit that detects a focus-adjusted state of a currently mounted removable lens unit; a first acquisition unit that acquires information on chromatic aberration of the currently mounted removable lens unit corresponding to a lens position of the currently mounted removable lens unit; a second acquisition unit that acquires information on spectral characteristics of a subject; a correction unit that corrects information on the focus-adjusted state, which has been detected by said focus-state detection unit, in accordance with the information acquired by said first and second acquisition units; and a control unit that repeats, upon detection by said focus-state detection unit of the focus-adjusted state of the currently mounted removable lens unit, the operations of: