Solid optical table Prismax 20 series

15 cm ruler adapted for phoropter use Anti-friction sliders Very long bench life Thanks to this new ruler starting at -15 cm, focusing experiments are made easier! The reference object is placed at the "0" graduation to simplify the calculation of the conjugation law. Profile: equilateral triangular Structure: solid aluminum Graduation: from -15 to 185 cm / 1 mm increment Ruler: protected and unalterable Contacts: PTFE sliders Support: 2 long feet (1 at each end) Horizontality: adjustable on 4 points Linear mass: 3.5 kg/m (excluding feet)