Filtered 25″ resolution MGCLS Stokes-I intensity image of a large diffuse radio ring surrounding and connecting to an interacting pair of galaxies in the MACS J0417.5−1155 field. The brightness scale is linear and saturates at 0.2 mJy beam⁻¹. The interacting pairs are seen in the Pan-STARRS false colour gri-composite inset. White contours show the full-resolution (7.9″ × 7.8″) MGCLS Stokes-I intensity, with a 1σ local rms noise of 6 μJy beam⁻¹. The first two contours are at levels of 3.5 and 5σ, thereafter increasing by a factor of 3. The same contours, starting from 5σ, are shown in the inset. The synthesised beams are shown in the upper left corner (grey – filtered 25″ resolution, white – full resolution).