1. An apparatus for use in reading a symbol, wherein the apparatus comprises in combination: an imaging assembly; a hand graspable housing; wherein the imaging assembly comprises an image sensor having a plurality of pixels and optics focusing an image onto the image sensor, wherein the image sensor is a two dimensional image sensor; wherein the apparatus is operable in a plurality of user selectable operating states; wherein the apparatus in one of the plurality of user selectable operating states is operable to capture a relatively smaller sized frame of image data and responsively to a processing of the relatively smaller sized frame of image data capture one or more relatively larger sized frames of image data for use in attempting to decode the symbol, the one or more relatively larger sized frames of image data having image data corresponding to a predetermined set of pixels of said image sensor and representing a larger portion of the symbol than image data of the relatively smaller sized frame of image data; wherein the apparatus in another one of the plurality of user selectable states is operable to capture a first frame of image data having image data corresponding to a first set of pixels of the image sensor and responsively to a processing of the first frame of image data capture a second frame of image data having image data corresponding to a second set of pixels of the image sensor for use in attempting to decode the symbol, wherein the second set of pixels is different from the first set of pixels and wherein the pixels of the second set of pixels are adaptively determined responsively to a processing of the first frame of image data.