1. An imaging system for electronically capturing optical images, wherein the imaging system comprises: a pixel array, wherein the pixel array comprises: a first pixel group, wherein the first pixel group is associated with a first portion of an optical image and is associated with a first signal, and a second pixel group, wherein the second pixel group is associated with a second portion of the optical image and is associated with a second signal; a first analog processing path, comprising a first analog to digital converter, wherein: the first analog processing path converts the first signal to a first digital signal, and the first analog processing path operates in a first power mode; and a second analog processing path, comprising a second analog to digital converter, wherein: the second analog processing path converts the second signal to a second digital signal, the second analog processing path operates in a second power mode, and the first power mode consumes more power than the second power mode.