1. An apparatus comprising: at least one processing unit; at least one memory; wherein the at least one memory stores program instructions that, when executed by the at least one processing unit, cause the apparatus to: control a first set of pixels of an image sensor for exposure of a scene for a camera viewfinder, the image sensor having at least two separate sets of pixels enabling different exposure times; and control a second set of pixels of the image sensor, separate from the first set of pixels of the image sensor, for exposure analysis of the scene for images to be captured for a multi-exposure image.