I having major problems keeping my focus screen clean (the little screen that has the focus points marked on it, inside the camera body). It’s getting covered in small hairs and dust spots. I’ve tried cleaning in with my normal digi-pad swabs and cleaner, but can’t get good results. It’s difficult to clean the whole screen because it’s tucked away tightly, and the swabs leave streaks on the screen which are very apparent in my photos.