2. increase the safety level of the driver by providing extra information to avoid potential accidents. today we're going to learn the results of that work up. but the building needed those columns to help span the large open area. remember, you’re working with very shallow focus that is not easy to place where you want it, it takes time. please note it’s possible to buy cheap ski passes on line however these passes do not include insurance cover on the mountain and you will be required to pay an excess on your holiday insurance if you have an accident. 