Todd, Having some experience with R3/R32 your choice for rhombohedral lattice seems a bit confusing. Are you sure the angles are 90,90,90? This might be cubic, IMHO. Vaheh Oganesyan -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of Green, Todd Sent: Friday, August 10, 2007 5:29 PM To: [email protected] Subject: [phenixbb] conversion from h3 to r3 with phenix apps Hello all, I have what i believe to be a rhombohedral crystal that has an insanely large cell with the hexagonal setting: 533.026 533.026 652.887 90.000 90.000 120.000 and a modestly large cell comparatively with the rhombohedral setting: 377 377 377 90 90 90 I should be able to easily reindex to the smaller cell in scalepack but for some reason i'm not getting it to work correctly. Rather than struggle further on a friday afternoon, i figured that i'd give a phenix app a try. i assume xtriage can do this, can someone point me in the correct direction? thanks in advance- Todd