*** For details on how to be removed from this list visit the *** *** CCP4 home page http://www.ccp4.ac.uk *** Hello everybody.. Could anyone explain how I deterine the x y origin of an image using ice rings ? Best wishes, Stefan -- Stefan Backstrom UCMP Umea University s-901 87 Umea Sweden email: stefan.backstrom@ucmp.umu.se tel: +46 907856794 fax: +46 90778007