Metering modes and camera exposure

Using Light Metering Modes To Get Camera Exposure

Calculating The Exposure

  • N is the relative aperture (The F-stop)
  • t is the shutter speed (Exposure time)
  • L is the average scene luminance
  • S is the ISO (In terms of speed for film and brightness with digital sensors)
  • K is the reflected-light meter calibration constant

Exposure Meter

The exposure meter on the camera in red circle.

Types Of Metering Modes

Metering modes (Source Nikon)
Matrix Metering
ISO 400 f/16 1/250 sec
Spot Metering
ISO 250 f/3.3 1/125 sec
Center-Weighted Metering
ISO 200 f/11 1/2000 sec

Issues With Light Metering

Hand-held light meter (Source Wikipedia)




Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Vincent Tabora

Editor HD-PRO, DevOps Trusterras (Cybersecurity, Blockchain, Software Development, Engineering, Photography, Technology)