>>3242280You have an M39 rangefinder mount lens. Because of the much shorter flange distance it has been designed to work with, you cannot achieve infinity focus with it on a DSLR.
M42 mount lenses can be adapted to Canon because they were designed to be used on SLRs with longer flange distance. Sell your Jupiter, it isn't worth getting an adapter with correction optics on it. It's a pretty bad lense but hipsters pay premium for it anyway. Get a Helios-44 or Industar-50-2.