Deconvolved image of NGC 5921 reconstructed at 7 arcsec per pixel. The first panel shows inner 64 × 64 portion of the sum of channels 10 to 50 of the 256 × 256 raw output from the SL1M algorithm. The second panel shows the same region as the first, but convolved with a 28 arcsec Gaussian to approximate the synthesised beam of the telescope. The third panel shows a CLEAN based reconstruction from the CASA software package.