Our 11" x 14" book scanner fixture is made with 0.5" lightweight Sintra and is hinged for up to 180-degree openings. Magnetic catches prevent inadvertent opening. Each comes with two device-level targets and for measuring resolution, SFR, and illumination non-uniformity over the entire platen area. Finger pull depressions are provided to allow easy removal and replacement of each target element. Target elements are also held in place with neodymium magnets to prevent targets from falling out during transport or vertical mounting.