You will come across two types of metering:
- The first kind is reflective metering. The actual meter within your digital camera is basically reflective metering. It calculates the quantity of light that will bounce off of from your subject into your digital camera lens. Your digital camera makes use of this info to find out variables such as the aperture, ISO and shutter speed if it is fixed on auto-mode.
- The 2nd kind of metering is known as incident metering. Hand-held light meters are generally incident meters. The incident meters calculate the light shimmering on the subject. Simply because they are not relying on the reflective attributes of light to provide you with a reading, they are far more precise when compared with your camera interior meter. The dome that comes in reflective meter contains sensitive sensor that calculates the light entering it from all possible angles.