Hi, im having a error with my lens or the connector to it or the camera (hope not). When i turn on the camera i can only see a blank / black screen and no image. I can see all the data on the display but no image coming through the lens. For weeks i have been having the same issue but after turning it on and off a couple of times it got better, now its black. I can see the camera display with the settings on it but no image. Have tried to clean the lens and around themount with the blower but no luck. Also upgraded to firmware 1,7. anyone had the same issue? Have the 12-50mm kit lens. Thanks.