Olympus C 4000 C-4000 Zoom Reference Manual (8.2 MB) - Page 87

Chapter 5 AE lock - Locking the exposure AEL Suitable for situations when optimal exposure is difficult to achieve (such as excessive contrast between the subject and the surroundings). For example, if nearly the whole frame is taken up with sky, shooting with automatic exposure will result in a dark subject. In this case, first frame an image without any sky. Then, press the button to lock the exposure of the non-sky frame. Finally, compose your shot again with the sky in the frame and shoot. In other words, use AE lock when you want an exposure setting that's different from the setting that would normally apply to the image you want to shoot. Mode dial setting ∑ Setting AE lock 1 Set AE lock to the button. ~ "Setting the custom button" (P. 146) ● Set MULTI METERING to OFF (P. 83). If set to ON, AE lock is not available. button 86