With 790 x 815 x 250 mm XYZ measurement volume and 300 or 400 mm extended Z axis, SmartScope® Quest 800 accurately measures very large parts or large arrays of smaller fixtured parts. System's 10:1 TeleStar® telecentric zoom lens provides high-level optical performance and accurate video metrology. For stability, optics/sensor head is mounted on stable granite bridge over worktable and moves only in X and Z axes, while worktable itself moves underneath in Y axis.