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AE-L/AF-L button has 2 hidden functions

Nikon cameras (and most certainly others as well) has a button on the back side of the camera called AE-L / AF-L. The normal function of this button is to lock exposure and auto-focus so that you may recompose the shot and then press the shutter release without the camera attempting a new focus or metering and changing the exposure parameters.

This article will start off on the D70s camera that I have, but should work very similar on most Nikon digital bodies. It may also be the same for Canon and other brands although I have not verified it. If you know, please leave a comment to this effect!

Most people are probably aware that in the camera CSM menu item #15 you can control what this button actually does. The obvious choices here are the following:

  • Lock exposure and auto-focus at the same time (AF/AE mode)
  • Lock only auto-focus (AF mode)
  • Lock only exposure (AE mode)

What people generally do not know is that there are two more modes that are very useful in certain situations. These modes are:

  • Auto focus ON mode (AF-ON mode)
  • Flash metering off mode (FV mode)

They are not so well described in the manual and so you may want to practice a bit with using them! The rest of this article is to describe some situations where they are quite useful:
Fortsätt läsa AE-L/AF-L button has 2 hidden functions

Nikkor Lens Designations


There is a lot of confusion among people on the net who recently bought a Nikon digital camera. So I was trying to clear up this concept once and for all. Please link to this site if you run a mailing list or similar where this question comes up now and then.

Nikkor is the brand of lenses produced by Nikon corporations. A lot of people refer to them simply as Nikon brand lenses or Nikon lenses. Don’t get confused, the trading name these lenses are sold under are Nikkor. Fortsätt läsa Nikkor Lens Designations