The invention relates to a structure of a semiconductor chip (100) comprising photosensitive elements (104) for image capturing. The semiconductor chip (100) comprises a set of photosensitive elements (104) for forming electric signals on the basis of electromagnetic radiation received by the photosensitive elements (104); and other electronic circuitry. A surface of the semiconductor chip comprises a first region (102) and a second region (110); and the set of photosensitive elements (104) is located in the first region (102) and the other electronic circuitry is located in the second region (110). The invention also relates to methods, apparatuses, and computer program products.