![]() Image quality is not only about noise though. ![]() This is a superb performance compared to other cropped-sensor DSLRs. Even ISO 640 are usable for smaller prints. ISO 3200 takes this further but can pull off a mid-sized print without problems. ISO 1600 shows a small reduction in sharpness but is still very usable. ![]() Images are noise-free up to ISO 400 with the slightest hint appearing at ISO 800. At 18 MP, it still manages to keep noise exceptionally low and capture images with a good amount of details. In terms of image noise, the Canon 7D excels. Conversely, it is possible for a lens to transmit more details than the sensor can capture. So, the camera cannot capture more details than the lens lets through. While color, noise, contrast and exposure are properties of the camera, distortion, vignetting and chromatic aberrations are properties of the lens. For a digital SLR, image quality greatly depends on the lens used. Ultimately, it is the image quality that makes a camera worth buying.
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