This lecture covers the fundamental concepts of image acquisition, starting with the optical devices like lenses and their types, such as convex and concave lenses. It delves into the factors influencing optical resolution, like diffraction limits and modulation transfer function. The lecture also explains lens distortions, including spherical aberration and chromatic aberration, and their practical implications. It further explores the components of the image acquisition chain, such as the diaphragm, shutter, and sensor, and their functionalities. The lecture concludes with discussions on sensor technologies, color spaces, image processing pipelines, and additional functionalities like image stabilization, image stitching, and high dynamic range imaging.