One of the most common reasons for bad pictures may be staring you – or your subject - in the face. Dirty lenses can happen to anyone, anywhere. Now tech industry insider Marty Winston has a tip for cleaning them.

There's a relatively new kind of lens cleaner for eyeglasses that creates a very thin molecular film with nanotechnology. Most eyeglass stores offer it. It's in their house brand, but the name of the manufacturer, Nanofilm, will be somewhere on the label.

When cleaning lenses with a spray, it's also a good idea to use a micro-fiber cloth wipe to avoid scratches.