DSLR stands for Digital Single-Lens Reflex. It refers to a type of digital camera that uses a mirror mechanism to reflect light from the lens up into an optical viewfinder. When you look through the viewfinder of a DSLR, you’re seeing exactly what the camera’s lens sees, thanks to this mirror system.
When you press the shutter button to take a photo, the mirror flips up, allowing light to hit the image sensor directly, capturing the image. This design is known for its versatility, allowing for interchangeable lenses and providing photographers with greater control over settings like aperture, shutter speed, and ISO sensitivity, making it a popular choice for professionals and enthusiasts who want more creative control over their photos.