The HB400 Optical Comparator features a large 16-in. diameter viewing screen, the 16-in. horizontal travel, a 6-in. Y vertical travel, a 2-in. focus travel, and a 110-lb. work stage load capacity. The HB400 also has rugged all-metal construction with a hard-anodized stage tooling plate, LED profile and surface lighting rated to 50,000 hours,  and touch-screen operation. Featuring a linear encoder glass scale on both X and Y-axes and digital protractor for angle measurement of 1' resolution via Q-axis readout, the HB400 is exceptionally accurate and reliable.


The Starrett HB400 has a single bayonet-style lens mounting system that accepts a choice of six fixed interchangeable lenses, as well as OV2 Zoom or TOV2 fixed telecentric magnification video camera systems. The HB400 is available with MetLogix M1 tablet, M2 or M3 measuring software (when using OV2 and TOV2) PC, or digital readout systems.