Girard L J
Trans Sect Ophthalmol Am Acad Ophthalmol Otolaryngol. 1976 Sep-Oct;81(5):921-2.
A bracket has been designed for the Zeiss 1 and Zeiss 6 operating microscopes, enabling the mounting of two accessory microscopes for the surgeon's assistants. These accessory microscopes operate independently of the primary microscope and in many cases may be preferable to beam-splitter systems which drastically reduce illumination to the primary microscope and preclude the use of photographic accessories.