WARNING: You did not specify --angpix_ref. The pixel size in the image header of Refine3D/job171/run_half1_class001_unfil.mrc, 0.653 A/px, is used. WARNING: You did not specify --angpix_ref. The pixel size in the image header of Refine3D/job171/run_half1_class001_unfil.mrc, 0.653 A/px, is used. WARNING: You did not specify --angpix_ref. The pixel size in the image header of Refine3D/job171/run_half1_class001_unfil.mrc, 0.653 A/px, is used. WARNING: You did not specify --angpix_ref. The pixel size in the image header of Refine3D/job171/run_half1_class001_unfil.mrc, 0.653 A/px, is used.