Usually, an added protector is optional rather than essential on a camera like the Canon 60D. The LCD is already behind a solid clear outer layer, and a reversible screen can be turned inward for extra protection during transport.

That said, some photographers still like a protector because it helps keep oils, smudges, and minor scratches off the outer surface during normal use. In that sense, it protects the camera’s existing protective cover rather than the LCD itself.

Whether you “need” one depends on how rough your use is and how much you care about keeping the screen pristine. If the camera already includes a protective outer cover or the LCD surface is durable enough for your needs, many people skip it. If not, or if you want extra peace of mind, a thin adhesive protector can make sense.

A properly sized protector should not stop the screen from flipping inward, as long as it is not unusually thick and is made for that size screen. If a model-specific protector is unavailable, some users cut a larger phone-style protector to fit.