There are several steps you should take to focus your binoculars. The first step is to close your right eye and look through the left eyepiece of the binocular. Turn the center focusing wheel until you see a sharp image. Then, close your left eye and look through the right eyepiece. Turn the diopter eyepiece until you see a sharp image in your right eye. Lastly, look through both eyepieces. Use the center focusing wheel only to correct the focus when you begin looking at different objects. Now you are ready to fully enjoy your binoculars.