| -verbose 7 | Verbosity of output |
| -datatype u | Force writing of a new data type (default output floating point) |
| -origin 32,32 | Projections origin (default center of projections) |
| -sampling 1.5,1.5,1.5 | Sampling (A/pixel; a single value can be given). |
| -kernel 15,4 | Kernel size and power (default 11,2) |
| -threshold 19.4 | Threshold for accepting a particle image (default 0) |
| -symmetry D5 | Number of symmetry equivalents (default 1) |
| -output file.star | Output parameter file. |
| -reconstruction rec.map | Reconstruction file name. |
| -mask mask.map | Binary mask for POCS filter. |