Digital cameras allow users to capture photos digitally instead of on film. They have become multifunctional, capable of recording video and sound as well. While providing benefits like easy distribution and manipulation of images, their use raises ethical considerations regarding responsibilities to subjects. Digital photos are composed of pixels, with higher pixel counts enabling larger print sizes. Optical zoom uses lens magnification while digital zoom crops and enlarges images, reducing quality. Photos are compressed using JPEG to reduce file sizes, with greater compression lowering quality more.