Abstract: The invention relates to an image-capturing device for the miniaturized near-field image capture of biological tissue, in particular for the imaging of genetic indicators. The image-capturing device comprises at least one digital image sensor and an objective lens in the form of a rod-shaped gradient index lens (GRIN), which objective lens is coupled to the digital image sensor for image capture. The objective lens is connected to the digital image sensor to from a monolithic, fixed assembly. There is no mechanical separating interface between the objective lens and the digital image sensor by means of which the digital image sensor can be separated from the objective lens by the user. The invention further relates to a system for the miniaturized near-field image capture of biological tissue, said system comprising an image-capturing device of this type and an evaluation device connected to the image-capturing device.