I just purchased a brand new Canon Rebel T3i kit from Costco.. I used it for a couple of days, but now when I have the 18-55mm lens attached and the camera on auto-focus, it will not take a picture. Still will take a picture in manual focus. And will take a picture in either focus with the other lens on (55-250mm).
I've been told by a friend that the lens may not be seating right. Are there any other settings I can check? I am very new to the camera and I probably messed with some settings or accidentally bumped something I shouldn't have.
Or I can take it back to Coscto and exchange it.