If an f = 135-mm telephoto lens is designed to cover object distances from 1.2 m to ∞, over what distance must the lens move relative to the plane of the film?
Chapter 1: What is Sound The Very First Steps 1. We use the word “sound: to describe at least two different things: a. Sensation of the auditory nerve of our ear. i. Means what we actually perceive. b. The wave. i. Traveling through the medium which somehow causes the sensation of hearing. 2. Acoustics is a science of sound. a. Acoustics is an interdisciplinary science which includes Physics, Engineering, Theory of Music, Psychology, Physiology, Architecture, and the study of sound we cannot hear: Ult