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; 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 overall resolution; 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 with a predetermined overall resolution, wherein the image processing device is effective to subject the digital individual images to a correction to reduce alignment inaccuracies and/or parameter 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 takes place with a correction resolution, which is higher than the predetermined overall resolution and lower or equal to the individual resolution to obtain corrected individual images or a corrected overall image, and to combine adjacent pixels of the corrected individual images and to assemble the images or to combine adjacent pixels of the corrected overall image to obtain the optical resolution with the predetermined overall resolution.