After I wrote the Autofocus Modes article, I received several requests from our readers, asking me to explain what the AE-L / AF-L button does, when it should be used and how it can be combined with different autofocus modes. In this article, I will try to go through this button in depth and explain how I personally use it on my cameras...

After I wrote the Autofocus Modes article, I received several requests from our readers, asking me to explain what the AE-L / AF-L button does, when it should be used and how it can be combined with different autofocus modes. In this article, I will try to go through this button in depth and explain how I personally use it on my cameras...