You can never have too much protection for you camera lenses. You can use filters and caps to protect them, while in use or not in use, and you can also give them added protection by placing them in lens bags. Lens bags are basically bags to place your lenses in. A good bag should enclose the lens to keep dust and other debris out of it. The bag should be durable with a little bit of padding for protection. It should also be easily accessible as you don't want to be fumbling about trying to get to your lens. You could miss the opportunity for a good shot if you are trying to get your lens out of its bag. Make sure the lens bag is big enough for your lens. Bags can be found for about $20 and come in a range of different fabrics and colors. It is a good idea to buy different colors for each lens to ensure you can grab the right one at the right time, using a color coding system.
