I bought a new Canon 100d. I don't know how to shoot it with the viewfinder eyepiece.

Canon 100d viewfinder eyepiece shooting method: 1, there is a symbol similar to a camera on the right side of the viewfinder, you can press the button next to it. There is no response when you press the shutter. Maybe the point is not finished. Half-press the shutter to let the camera focus, and then press. 3. Of course it's black when the screen is open. You must turn off the screen before you watch it. If it is dark when the screen is turned off, 4. Check whether the lens cover is opened or whether it is facing the dark place. If everything is normal or abnormal, you can take it to the maintenance center.

Because the viewfinder eyepiece has always been a LCD screen. If the screen is still black when it is turned off, first check whether the lens cover is opened or it is facing a very dark place, so many people still say that pressing the camera next to it does not respond.