1. A camera for optically capturing a screen, wherein the screen has an area, and wherein a predetermined overall resolution is intended for the optical capture, comprising: a camera support with an array of camera mounts, which are effective to build an optical arrangement comprising: an array of optical individual cameras, wherein every optical individual camera is fixed on an associated camera mount, wherein an optical individual camera has a light sensor and an optical imaging device, wherein the light sensor and the optical imaging device are effective to capture a partial area of the screen area with an individual resolution, which is higher than the predetermined overall resolution, wherein the light sensor and the optical imaging device are arranged such that the partial areas of the optical individual cameras partially overlap each other; and an image processing device for processing digital individual images of the array of optical individual cameras to generate the optical capture of the screen that has an area, with the predetermined overall resolution, wherein the image processing device is effective to subject the digital individual images to a correction to reduce alignment inaccuracies and parameter variations including scaling variations in the array of optical individual cameras, wherein a correction rule determined for an individual image during calibration is used for the correction, and wherein the correction results in corrected digital individual images having a correction resolution which is higher than the predetermined overall resolution and lower than or equal to the individual resolution used used when capturing the partial areas of the screen area; wherein the image processing device is effective to assemble, with overlapping areas of the corrected individual images eliminated, the corrected individual images to obtain a corrected overall image having the correction resolution, and wherein the image processing device is effective to combine adjacent pixels of the corrected overall image to reduce the resolution thereof down to the predetermined overall resolution.