A Canon DSLR is a type of digital camera that uses a mirror mechanism to reflect light from the lens to an optical viewfinder. This allows photographers to see exactly what the lens sees, making it easier to compose shots. Canon offers a range of DSLR models suitable for beginners to professionals, featuring interchangeable lenses and manual controls for greater creative flexibility. These cameras typically have larger sensors than compact cameras, which can improve image quality, especially in low light. Canon DSLRs also support various accessories, such as external flashes and tripods, enhancing their versatility for different photography styles.