Hi Everyone, just a quick notice: the most recent version of PHENIX http://www.phenix-online.org/download/nightly_builds.cgi has an option for electron density map sharpening which might be important for low resolution maps improvement. This is available from the command line phenix.maps and from the GUI as well. Please let me know if you have any questions. The optimal B-factor sharpening value is determined automatically although the user can provide his/her own value. The above tools allow you to compute any amount of maps, so I would recommend computing at least two: regular amp and B-factors sharpened. This is a new option so I would appreciate any feedback from those who got interested and tried it. Please let me know any bugs (should you find any) or any suggestions. Pavel.