With Partial metering, it doesn't matter whether the EOS user is shooting with a wide-angle, telephoto or zoom lens since the exposure values that are taken into consideration, are based on the area it is aimed at. The two photos below are shot with a wide-angle (left) and a telephoto zoom lens (right). In both cases, the Partial meter was aimed at the apartment building. Shot with 28mm lens Shot at the 200mm focal length Most built-in light meters are liable to give the wrong exposure due to the fact they are designed to read data based on 18 per cent gray. Whenever you encounter a situation having strong differences between the highlight and shadow areas, just use the Partial metering mode of your EOS camera and aim it on any neutral scale subject matter. A neutral scale subject matter is anything that is not under heavy shadow or in either black, white, gray or dark green in colour. Any other colours like blue, yellow, red, purple, orange, bronze or skin tones of Asians or Caucasians are excellent subjects where precise exposure readings can be obtained with the built-in Partial metering feature. Shown below are photos of how the Partial meter is used in such manners: Partial meter aimed at bronze horse-cart (right) Partial meter aimed at the Summit's wordings Partial meter aimed at fountain's head (middle) Partial meter aimed at the guy's shirt Partial meter aimed at joss sticks in golden pot Partial meter aimed at flowers on top right   << Back to Main . 1 . 2 . 3 . 4 . 5 .