Sony A7 AE lock howto?

[emaq]

Can someone describe in steps how they do the AE lock? I'm not quite sure I'm doing it right as the exposure changes. Maybe I have that setting in the screen where it changes? I think I need to set it so it doesn't change?
But anyway, I *THINK* the procedure is like this:

Look through viewfinder
Press halfway for exposure
Press with them the AE/AL button that is to the top right of the screen

Is that right?

[Gurin]

Sort of but…

You have to go in to the menu system and enable AEL toggle.

Find Custom Key Settings (cogs – 6) and assign AEL toggle to in this case the AEL-button.
Then you can point the camera and press the AEL-button and have the exposure locked. You unlock it by pressing the same button once more. I have this function assigned to the C2-button.

You will see a * in the lower right corner when the exposure is locked.