Geb 8 1996 8:05 PM starting sample 23 Green Lettuce Leaf aperture set halfway between 8 and 11 For calibration, the sample at normal position gave the stam at the central value where the photometer reads. The stem is much brighter than the rest of the leaf (and is saturated in pixel value to prevent the rest of the leaf from being to dark). To avoid measuring the stem, the sample was shifted off center. The grid remained centered with respect to the robot gripper. set robot parameters at z=360,p=17,l=162 9:45PM finished