Why does my DSLR camera get blurry whenever I connect my zoom lens?

Episode 892 (1:56:46)

Casey from Lakeport, CA
Nikon

There's a switch that goes from AF/MF (Auto Focus/Manual Focus). She should make sure it's in auto focus, and then press the shutter button halfway down and it should focus. If it isn't, then she should put the camera in Manual Focus and try turning the focus ring. Since it still isn't focusing, Leo thinks the lens is damaged. It's probably still under warranty, though.