An exposure reading that measure from the camera position with the metering sensor pointing towards the subject. This is the system used by most through-the-lens systems or with handheld meters that haven t got an invercone over the sensor. The angle in degrees is usually quoted.ephotozine
A meter that reads light reflected from the subject. All in-camera meters are of this type.
Those which are thrown off from an object.
An exposure meter reading of the light reflected by a subject. The exposure meters in most cameras are reflected light meters.
Various surfaces in a scene reflect between 1% and 95% of the Incident Light. Specular surfaces will reflect it narrowly. Diffuse (rough, irregular, or Matte) surfaces Scatter it. Also see: Glare and Bounce Light for further reflections.
An RLM reads Light that is reflected from a scene. Aim these meters at the subject or scene or a Gray Card from the direction of the camera. Also See: Spot Meter and 18% Assumption.