The GF50mmF3. 5 R LM WR gives photographers and filmmakers a rugged, weather resistant, and autofocus lens that can be used for everything from street photography to portraiture. Weighing less than 12 ounces, this lens may be as light as a feather, but it is certainly built for unpredictable weather, rugged environments, and cold temperatures. So, whether you're getting lost in a metropolitan city, or hiking mountain trails to make the perfect image, make sure you bring this lens along with you. It won't take up much space and will be a great tool to use to capture the action when it happens.