The EOS Rebel T6i (known as the EOS 750D outside the US) was until only recently Canon's key entry-level DSLR, taking the fight to the likes of the Nikon D3300 and D5600 . The Rebel T6i / 750D was launched back in early 2015 and Canon has just announced an update - the Canon EOS Rebel T7i ( EOS 800D...