Nikon N90 instruction manual AE-L Auto Exposure Lock Lever

AE-L (AUTO EXPOSURE LOCK) LEVER

In the auto exposure mode, when you want to control exposure based on the brightness of a specific area within the scene, switch the metering system to Center-Weighted or Spot and use the AE-L lever as follows:

1.Center main subject inside viewfinder and/or move in closer until reference circle for Center-Weighted metering or Spot metering is fully covered by the subject.

2.Lightly press shutter release button , and confirm shutter speed and aperture in viewfinder.

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