Shutter Release Button 5. LCD Panel 6. Metering Mode Switch 7. Hot Shoe 8. Exposure Compensation Release Button.
Users now expect to be able to choose from a center-weighted, spot or matrix averaging system .
Each of these offers advantages based upon the shooting situation as well as the user's expertise. The spot-metering mode reads approximately five percent of the center of the viewfinder, allowing those who want to set a portion of their composition to a particular zone or value to do so. The center-weighted mode, as the name implies, reads a larger portion of the viewfinder while maintaining most of its sensitivity in the center. The multi-segment metering mode uses a six element TTL metering system. Light values are measured in six segments within the image field.