An endoscope assembly, comprising an insertion tube, a first imaging sensor on a distal end region of the insertion tube, a first light source on the distal end region of the insertion tube, and an imaging device coupled to the distal end region of the insertion tube, wherein the imaging device includes a second imaging sensor that faces towards the first imaging sensor when the imaging device is coupled to the insertion tube and a second light source, wherein the second light source is configured to be off when the first imaging sensor is on and the second light source is configured to be on when the first imaging sensor is off.
