I have the Rebel T6s.  I primarily shoot in P mode and have noticed that half pressing down on the shutter doesn’t lock the focus as all instructions have said it should.  When I half press the shutter button it will focus on what’s in the center but then as I recompose the shot the camera will refocus on whatever is in the center.  Any idea why I can’t seem to get my camera to lock focus when half pressing the shutter?
				
			
				
		