A large field of view stitching method with a single lens was proposed to meet the requirement of remote target capture. An experimental prototype was designed to verify the method, and the imaging characteristics of the prototype were analyzed. The structural design of the prototype and the camera exposure control process were introduced. Then according to the imaging method, by controlling the continuous conic rotation of the camera to realize large-field imaging, the image motion feather of the prototype and the influence of the motion tolerance on the correct splicing of the sub-images were analyzed. At last the control parameters were designed to make the camera expose to the proper field when the prototype was in running. In the experiment, the parameters of the prototype were substituted into the analysis results, the image motion value was obtained by calculation, and the stitching deviation of the sub-images caused by the camera motion error was checked. Finally the large field image that was stitched correctly was obtained according to the camera exposure control parameters obtained by calculation. The imaging characteristics of the experimental prototype were analyzed, which laid the foundation for engineering application of the large-field stitching method.