![]() ![]() However, very high ISO settings can sometimes cause grain or “noise” in the image. ISO is an adjustable setting and reaches much higher than it ever did. The higher the ISO number, the more sensitive the sensor and the brighter the image. Photographically, ISO stands for the level of sensitivity the camera’s sensor has to light. When you take a photo, the mirror flips up, the shutter opens, and the digital sensor is exposed to the image. This allows the photographer to see exactly what they’re shooting, and enables fast and accurate focusing. ![]() ![]() A DSLR has a mirror behind the lens, which redirects the light from the lens to the optical viewfinder and focusing systems. DSLRs allow for interchangeable lenses, and are typically larger and more robust than other camera types. A DSLR is a digital single-lens reflex camera. ![]()
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