Optical configurations for x-ray imaging by projection L. Alianelli (1,2), M. Sanchez del Rio (3), A. Ya. Faenov (4), T. Pikuz (4), R. Felici (1) and O. Hignette (3) 1) INFM-OGG, c/o ESRF, BP 220, F-38043 Grenoble Cedex, France 2) Institute Laue Langevin, BP 156, F-38046 Grenoble Cedex, France 3) European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France 4) Multicharged Ions Spectra Data Center of VNIIFTRI, Mendeleevo, Moscow region, 141570 Russia Abstract. Several optical configurations aiming to create images of sub-millimetre objects with magnification from 1 to 100 have been experimentally tested at the ESRF BM5 beamline. A Kirkpatrick-Baez (KB) system is used for focusing the beam into a 30 microns spot and then direct projection images are recorded. Some results using a spherical crystal downstream from the KB system are presented. The possibility to focus the synchrotron beam into a 40 microns spot using an spherical crystal in quasi-normal incidence is demonstrated and its use for projection microscopy is discussed.