So i have the sony a5000 shutting in shutter priority with the 16mm wide angle lens. For some reason it is constantly changing the picture from really light to dark. Now I know its going to change a bit but it going from and aputure or 8 to 13 and you can see it doing this really fast on the LCD screen just standing on the ground. Is there any thing i need to turn off in the setting that would be causing this huge issue. So I need some help with this issue if possible