More details of super-bright supernova released

Light of a supernova that is not lensed appears dimmer and as a single image (bottom). From the same point of view on Earth, the lensed supernova's light would appear brighter and as four distinct images (top), as shown in this illustration.
Surhud More,Kavli IPMU; Images of galaxies: ESA, NASA Hubble Heritage project, SDSS