Scanning FPI for Galactic and extragalactic researches in SAO RAS A.V. Moiseev The scanning Fabry-Perot interferometer (IFP) is a powerful tool for the investigation of the kinematics of extended objects by the method of panoramic (3D) spectroscopy. In this review the opportunities of the IFP are illustrated on the observations recently obtained on the SAO RAS 6-m telescope. The main attention is given for kinematically decoupled regions in the galaxies: bars, spirals, polar disks and rings, regions of the violent starformation.