Instruments for inserting an implant in a space between adjacent bony portions include upper and lower guide members separated by a spreader with the implant positioned forwardly of the spreader. An internal pressure of the chamber is affected by a crimping force. Coolant lines direct a flow of the coolant through the intercooler pump, the first heat exchanger, the second heat exchanger and the intercooler coolant reservoir. A first feature of a simulated wafer image is shifted with respect to a second feature thereof in accordance with the predetermined maximum overlay error. The pixel addition by way of the pixel addition logic is coupled to the gain control of the camera in a manner such that, in each case, the gain control compensates for jumps in brightness which arise by way of the pixel addition and creates for the user a flowing transition without noticeable jumps in brightness. Thus, the region of a predetermined object in the video can be described with a small quantity of data.