![]() However, even new cameras and lenses may have some slight margins of error in how their components are positioned. When you first buy a lens, it should function predictably with your camera body, and your autofocus system should work well. “And lens calibration corrects how ‘off’ the lens is.” “It’s like a miscommunication between camera and lens,” says photographer Jason Weingart. ![]() Your camera can tell you that it’s focused, but when you zoom in really close, you can see that it’s a little bit off.” “Say you’re shooting a client’s wedding, you use autofocus, and your image is focused on the back of their ear instead of their eye. “That’s the worst thing,” says photographer Felipe Silva. This leaves room for images to appear in focus in the viewfinder, only to be out of focus when they’re actually produced. However, in a DSLR camera, an autofocused image requires clear communication between the lens (which lets in the light), the camera’s autofocus chip (which determines when the image is in focus), and the camera’s sensor (which creates the image). Theoretically, autofocus should always produce sharp images, with your chosen subject in focus. Lens calibration, also known as autofocus calibration, is a method of fine-tuning where the focus point falls in your image when you are autofocusing.
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