When taking an image the mirror will swing up and light will go to the sensor instead. A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the sensor. A DSLR camera is a camera that operates with a fixed, digital sensor.

Understanding the Context

It can autofocus and hold thousands of photos on its internal memory card, making it a favorite camera choice for both pros and entry-level photographers alike. There are many types of cameras out there, but when it comes to advanced, interchangeable lens models, nothing is more iconic than the DSLR. The name is practically synonymous with “professional... What is a DSLR camera and how is it different from mirrorless?

Key Insights

Shop Best Buy for DSLR cameras. Let us help you find the right digital SLR camera to capture a lifetime of memories. DSLR is the abbreviation for Digital Single Lens Reflex. “Digital” means that the camera operates with a fixed digital sensor. “Single-lens” means the camera uses the same lens for framing, focusing, and taking the photo.

Final Thoughts

This is different from a rangefinder or twin-lens-reflex constructions. The term "DSLR" stands for Digital Single-Lens Reflex and describes the mechanics behind how this type of camera works. DSLR stands for Digital Single-Lens Reflex. This describes the camera's core mechanism: a single lens is used for both viewing and capturing the image, thanks to an internal mirror.