31 in correct relationship with respect to one another so that the reticle is on the focal plane of the lens 32 any suitable means for holding the tubes together may be employed the diffusing glass 34 picks up direct or reflected light and illuminates the reticle 33 by panning the camera with the device attached thereto around the room to lighter or darker areas a selected area can be found permitting the zoom lens to be opened to full aperture or various densities of diffusion can be provided by the glass 34 it is also conceivable within the scope of the present invention that a detachable portable lamp unit may be employed where needed although a flashlight would supply sufficient light at night for full aperture such a portable light could snaplock onto the end of a reticle tube 31 collimated light is shown by the arrows exiting from the lens 32 while light entering the lens is indicated within the confines of the broken lines 36 referring now in detail to fig3 a typical pattern for a reticle is illustrated and the pattern is identified by numeral 37 preferably the pattern is a plurality of horizontal and vertical lines forming a grid so that a sharp focus may be obtained it is within the scope of the invention to have several reticles or patterns available to perform other camera adjustments or to use different reticles to use a slating or camera identification system it is also within the scope of the present invention to use the invention as a close up graphics device for small pictures or objects with full zoom range capability in actual operation a correct mounting flange 35 is screwed onto the ends of lens tube 30.