A smart phone is the best and the easiest to utilize. It will allow you to take and directly upload pictures to this assessment. 700 kb photos will suffice. The photographs must be clear and in focus i.e. not blurred nor out of focus. Hint : You may need to prop up your smart phone on a counter or on a book shelf or an ironing board whilst taking some of the photographs or obtain the assistance of a colleague or a co-habitant.