The HB400 Optical Comparator provides exceptional performance with a 16" (400mm) diameter viewing screen, LED lighting, and 110lbs (50kg) workstage load capacity. Available with optical detection which removes operator subjectivity in locating edges of parts being measured. A bayonet style lens mounting system accepts a choice of five fixed interchangeable lenses. Motorized stage and swing-away lamp house are optional features. This comparator provides performance previously only available with floor standing models.