* This button is used to lock exposure in one area of the frame then recompose the photograph. Set your exposure mode to “center weighted” or “spot metering” then position this point on the area you wish to have correctly exposed. Push in the AE-AL Lock button to set and lock the exposure, then (without [...]

Modern digital cameras give you choices as to how the sensor records the information it receives when you take a picture. JPG (large-fine): these are normal digital camera images. Use this setting. Cameras create JPG images from raw image sensor data. This raw data disappears as soon as the JPG image is recorded. With JPG [...]