We report the first successful application of the astrometric color-induced displacement technique (CID, the displacement of the photocenter between different band-passes dur to a varying contribution of differently colored components to the total light), originally proposed by Wielen (1996A&A...314..679W) for discovering unresolved binary stars.
Cone search capability for table J/A+A/423/755/table1 (Objects from SDSS Data Release 2 that exhibit a displacement of the photocenter between that measured in the u and z bands.)