You want to take a full-length photo of your friend who is 1.80{\rm m} tall, using a 35.0{\rm mm} camera having a 50.0{\rm mm} lens. The image dimensions of 35.0{\rm mm} film are 24.0{\rm mm} {\times} {\:} 36.0{\rm mm} and you want to make this a vertical photo in which your friend's image completely fills the image area. How far is the lens from the film?