A water controlling kit is connected to the fluid system, of a fire truck for example, used for pumping water to one or more fire hoses. The device includes a rotatable platform upon which the sample is placed and rotated in increments with an image of the sample being recorded at each rotational position to which the sample is rotated. The body has a selectively curved continuous uninterrupted outer surface that is generally egg-shaped. A method for transferring a back focal plane of the objective lens to a selected area aperture plane and any plane conjugated with the back focal plane of the objective lens is also provided.