Optical images of the fields of the two pulsars. Left panel: 2.​​′8 × 1.​​′4 FoV of the HiPERCAM instrument in the r_s band containing J2017. Right panel: 2.​​′7 × 2.​​′7 image of the J1513 field in the r′ band obtained with the Magellan-1 telescope. The pulsars’ vicinities within the small boxes are enlarged in the insets to demonstrate the maximum (bottom) and minimum (top) brightness phases of their companions, the positions of which are marked by blue circles.